90359523 has 8 divisors (see below), whose sum is σ = 133866000. Its totient is φ = 60239664.

The previous prime is 90359519. The next prime is 90359537. The reversal of 90359523 is 32595309.

It is not a de Polignac number, because 90359523 - 2² = 90359519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90359593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673298 + ... + 1673351.

It is an arithmetic number, because the mean of its divisors is an integer number (16733250).

Almost surely, 2^90359523 is an apocalyptic number.

90359523 is a deficient number, since it is larger than the sum of its proper divisors (43506477).

90359523 is a wasteful number, since it uses less digits than its factorization.

90359523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346658 (or 3346652 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 36.

The square root of 90359523 is about 9505.7626206423. The cubic root of 90359523 is about 448.7364107481.

The spelling of 90359523 in words is "ninety million, three hundred fifty-nine thousand, five hundred twenty-three".