347777744 has 80 divisors (see below), whose sum is σ = 725109840. Its totient is φ = 161280000.

The previous prime is 347777723. The next prime is 347777777. The reversal of 347777744 is 447777743.

It is a happy number.

347777744 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 33779344 + 313998400 = 5812^2 + 17720^2 .

It is a junction number, because it is equal to n+sod(n) for n = 347777692 and 347777701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1921334 + ... + 1921514.

It is an arithmetic number, because the mean of its divisors is an integer number (9063873).

Almost surely, 2^347777744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347777744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362554920).

347777744 is an abundant number, since it is smaller than the sum of its proper divisors (377332096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

347777744 is a wasteful number, since it uses less digits than its factorization.

347777744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 354 counting only the distinct ones).

The product of its digits is 3226944, while the sum is 50.

The square root of 347777744 is about 18648.8000686371. The cubic root of 347777744 is about 703.2351908661.

Subtracting 347777744 from its reverse (447777743), we obtain a palindrome (99999999).

The spelling of 347777744 in words is "three hundred forty-seven million, seven hundred seventy-seven thousand, seven hundred forty-four".