90689357 has 8 divisors (see below), whose sum is σ = 99073632. Its totient is φ = 82328400.

The previous prime is 90689329. The next prime is 90689359. The reversal of 90689357 is 75398609.

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

It is not a de Polignac number, because 90689357 - 2¹⁴ = 90672973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90689359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2882 + ... + 13772.

It is an arithmetic number, because the mean of its divisors is an integer number (12384204).

Almost surely, 2^90689357 is an apocalyptic number.

It is an amenable number.

90689357 is a deficient number, since it is larger than the sum of its proper divisors (8384275).

90689357 is a wasteful number, since it uses less digits than its factorization.

90689357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11659.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 90689357 is about 9523.0959776745. The cubic root of 90689357 is about 449.2817463726.

The spelling of 90689357 in words is "ninety million, six hundred eighty-nine thousand, three hundred fifty-seven".