90888539 has 16 divisors (see below), whose sum is σ = 107747328. Its totient is φ = 75040992.

The previous prime is 90888529. The next prime is 90888547. The reversal of 90888539 is 93588809.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90888539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90888529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24974 + ... + 28380.

It is an arithmetic number, because the mean of its divisors is an integer number (6734208).

Almost surely, 2^90888539 is an apocalyptic number.

90888539 is a deficient number, since it is larger than the sum of its proper divisors (16858789).

90888539 is a wasteful number, since it uses less digits than its factorization.

90888539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 90888539 is about 9533.5480803319. The cubic root of 90888539 is about 449.6104266224.

The spelling of 90888539 in words is "ninety million, eight hundred eighty-eight thousand, five hundred thirty-nine".