778322934 has 48 divisors (see below), whose sum is σ = 1810076112. Its totient is φ = 240827904.

The previous prime is 778322927. The next prime is 778322939. The reversal of 778322934 is 439223877.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 778322934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778322939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4917 + ... + 39759.

It is an arithmetic number, because the mean of its divisors is an integer number (37709919).

Almost surely, 2^778322934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 778322934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905038056).

778322934 is an abundant number, since it is smaller than the sum of its proper divisors (1031753178).

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

778322934 is a wasteful number, since it uses less digits than its factorization.

778322934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34941 (or 34938 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 778322934 is about 27898.4396337860. The cubic root of 778322934 is about 919.8562054721.

The spelling of 778322934 in words is "seven hundred seventy-eight million, three hundred twenty-two thousand, nine hundred thirty-four".