90205373 has 4 divisors (see below), whose sum is σ = 90242460. Its totient is φ = 90168288.

The previous prime is 90205363. The next prime is 90205391. The reversal of 90205373 is 37350209.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75290329 + 14915044 = 8677^2 + 3862^2 .

It is a cyclic number.

It is not a de Polignac number, because 90205373 - 2¹² = 90201277 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 (90205303) 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, 14618 + ... + 19851.

It is an arithmetic number, because the mean of its divisors is an integer number (22560615).

Almost surely, 2^90205373 is an apocalyptic number.

It is an amenable number.

90205373 is a deficient number, since it is larger than the sum of its proper divisors (37087).

90205373 is a wasteful number, since it uses less digits than its factorization.

90205373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37086.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 90205373 is about 9497.6509200960. The cubic root of 90205373 is about 448.4810896039.

The spelling of 90205373 in words is "ninety million, two hundred five thousand, three hundred seventy-three".