647767050 has 96 divisors (see below), whose sum is σ = 1878784512. Its totient is φ = 144607680.

The previous prime is 647767027. The next prime is 647767051. The reversal of 647767050 is 50767746.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 647766993 and 647767011.

It is not an unprimeable number, because it can be changed into a prime (647767051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37977 + ... + 52323.

It is an arithmetic number, because the mean of its divisors is an integer number (19570672).

Almost surely, 2^647767050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647767050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (939392256).

647767050 is an abundant number, since it is smaller than the sum of its proper divisors (1231017462).

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

647767050 is a wasteful number, since it uses less digits than its factorization.

647767050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14412 (or 14407 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 647767050 is about 25451.2681412931. The cubic root of 647767050 is about 865.2460346829.

The spelling of 647767050 in words is "six hundred forty-seven million, seven hundred sixty-seven thousand, fifty".