900712639 has 8 divisors (see below), whose sum is σ = 909076608. Its totient is φ = 892371480.

The previous prime is 900712621. The next prime is 900712661. The reversal of 900712639 is 936217009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 900712639 - 2⁷ = 900712511 is a prime.

It is a super-2 number, since 2×900712639² = 1622566516108688642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 900712598 and 900712607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900712679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79444 + ... + 90070.

It is an arithmetic number, because the mean of its divisors is an integer number (113634576).

Almost surely, 2^900712639 is an apocalyptic number.

900712639 is a deficient number, since it is larger than the sum of its proper divisors (8363969).

900712639 is a wasteful number, since it uses less digits than its factorization.

900712639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11405.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 900712639 is about 30011.8749664195. The cubic root of 900712639 is about 965.7441490006.

The spelling of 900712639 in words is "nine hundred million, seven hundred twelve thousand, six hundred thirty-nine".