905916772 has 6 divisors (see below), whose sum is σ = 1585354358. Its totient is φ = 452958384.

The previous prime is 905916763. The next prime is 905916797. The reversal of 905916772 is 277619509.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 821166336 + 84750436 = 28656^2 + 9206^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113239593 + ... + 113239600.

Almost surely, 2^905916772 is an apocalyptic number.

It is an amenable number.

905916772 is a deficient number, since it is larger than the sum of its proper divisors (679437586).

905916772 is a wasteful number, since it uses less digits than its factorization.

905916772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226479197 (or 226479195 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 905916772 is about 30098.4513222857. The cubic root of 905916772 is about 967.6005355491.

The spelling of 905916772 in words is "nine hundred five million, nine hundred sixteen thousand, seven hundred seventy-two".