90558371 has 4 divisors (see below), whose sum is σ = 95885352. Its totient is φ = 85231392.

The previous prime is 90558367. The next prime is 90558421. The reversal of 90558371 is 17385509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17385509 = 17 ⋅1022677.

It is a cyclic number.

It is not a de Polignac number, because 90558371 - 2² = 90558367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90558971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663465 + ... + 2663498.

It is an arithmetic number, because the mean of its divisors is an integer number (23971338).

Almost surely, 2^90558371 is an apocalyptic number.

90558371 is a deficient number, since it is larger than the sum of its proper divisors (5326981).

90558371 is a wasteful number, since it uses less digits than its factorization.

90558371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326980.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 90558371 is about 9516.2162123399. The cubic root of 90558371 is about 449.0653373899.

The spelling of 90558371 in words is "ninety million, five hundred fifty-eight thousand, three hundred seventy-one".