916390755 has 24 divisors (see below), whose sum is σ = 1815327072. Its totient is φ = 418921344.

The previous prime is 916390753. The next prime is 916390777. The reversal of 916390755 is 557093619.

916390755 is a `hidden beast` number, since 9 + 1 + 639 + 0 + 7 + 5 + 5 = 666.

It is not a de Polignac number, because 916390755 - 2¹ = 916390753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 916390755.

It is not an unprimeable number, because it can be changed into a prime (916390753) 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, 1454274 + ... + 1454903.

It is an arithmetic number, because the mean of its divisors is an integer number (75638628).

Almost surely, 2^916390755 is an apocalyptic number.

916390755 is a deficient number, since it is larger than the sum of its proper divisors (898936317).

916390755 is a wasteful number, since it uses less digits than its factorization.

916390755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909195 (or 2909192 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 916390755 is about 30271.9466668399. The cubic root of 916390755 is about 971.3153074455.

The spelling of 916390755 in words is "nine hundred sixteen million, three hundred ninety thousand, seven hundred fifty-five".