900078685 has 32 divisors (see below), whose sum is σ = 1264781952. Its totient is φ = 607610880.

The previous prime is 900078677. The next prime is 900078749. The reversal of 900078685 is 586870009.

It is a happy number.

It is not a de Polignac number, because 900078685 - 2³ = 900078677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61662 + ... + 74848.

It is an arithmetic number, because the mean of its divisors is an integer number (39524436).

Almost surely, 2^900078685 is an apocalyptic number.

It is an amenable number.

900078685 is a deficient number, since it is larger than the sum of its proper divisors (364703267).

900078685 is a wasteful number, since it uses less digits than its factorization.

900078685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13293.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 900078685 is about 30001.3113880044. The cubic root of 900078685 is about 965.5175206495.

The spelling of 900078685 in words is "nine hundred million, seventy-eight thousand, six hundred eighty-five".