900663957 has 6 divisors (see below), whose sum is σ = 1300959062. Its totient is φ = 600442632.

The previous prime is 900663913. The next prime is 900663977. The reversal of 900663957 is 759366009.

900663957 is a `hidden beast` number, since 9 + 0 + 0 + 6 + 639 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 763914321 + 136749636 = 27639^2 + 11694^2 .

It is not a de Polignac number, because 900663957 - 2¹⁶ = 900598421 is a prime.

It is a super-2 number, since 2×900663957² = 1622391126877795698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900663977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50036878 + ... + 50036895.

Almost surely, 2^900663957 is an apocalyptic number.

It is an amenable number.

900663957 is a deficient number, since it is larger than the sum of its proper divisors (400295105).

900663957 is a wasteful number, since it uses less digits than its factorization.

900663957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100073779 (or 100073776 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 900663957 is about 30011.0639098317. The cubic root of 900663957 is about 965.7267497393.

The spelling of 900663957 in words is "nine hundred million, six hundred sixty-three thousand, nine hundred fifty-seven".