916877405 has 32 divisors (see below), whose sum is σ = 1236384000. Its totient is φ = 649065472.

The previous prime is 916877393. The next prime is 916877407. The reversal of 916877405 is 504778619.

It is a cyclic number.

It is not a de Polignac number, because 916877405 - 2⁸ = 916877149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 916877405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916877407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111371 + ... + 119319.

It is an arithmetic number, because the mean of its divisors is an integer number (38637000).

Almost surely, 2^916877405 is an apocalyptic number.

It is an amenable number.

916877405 is a deficient number, since it is larger than the sum of its proper divisors (319506595).

916877405 is a wasteful number, since it uses less digits than its factorization.

916877405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 916877405 is about 30279.9835700088. The cubic root of 916877405 is about 971.4872162600.

The spelling of 916877405 in words is "nine hundred sixteen million, eight hundred seventy-seven thousand, four hundred five".