90707157 has 24 divisors (see below), whose sum is σ = 136225440. Its totient is φ = 58091040.

The previous prime is 90707153. The next prime is 90707161. The reversal of 90707157 is 75170709.

It is an interprime number because it is at equal distance from previous prime (90707153) and next prime (90707161).

It is not a de Polignac number, because 90707157 - 2² = 90707153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90707153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58482 + ... + 60012.

It is an arithmetic number, because the mean of its divisors is an integer number (5676060).

Almost surely, 2^90707157 is an apocalyptic number.

It is an amenable number.

90707157 is a deficient number, since it is larger than the sum of its proper divisors (45518283).

90707157 is a wasteful number, since it uses less digits than its factorization.

90707157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 15435, while the sum is 36.

The square root of 90707157 is about 9524.0305018411. The cubic root of 90707157 is about 449.3111386196.

The spelling of 90707157 in words is "ninety million, seven hundred seven thousand, one hundred fifty-seven".