916772688 has 80 divisors (see below), whose sum is σ = 2833915840. Its totient is φ = 282082176.

The previous prime is 916772671. The next prime is 916772699. The reversal of 916772688 is 886277619.

916772688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×916772688² = 1680944322925490688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 76006 + ... + 87237.

It is an arithmetic number, because the mean of its divisors is an integer number (35423948).

Almost surely, 2^916772688 is an apocalyptic number.

It is an amenable number.

916772688 is an abundant number, since it is smaller than the sum of its proper divisors (1917143152).

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

916772688 is a wasteful number, since it uses less digits than its factorization.

916772688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163273 (or 163261 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 916772688 is about 30278.2543750461. The cubic root of 916772688 is about 971.4502301811.

The spelling of 916772688 in words is "nine hundred sixteen million, seven hundred seventy-two thousand, six hundred eighty-eight".