90567213 has 32 divisors (see below), whose sum is σ = 136937472. Its totient is φ = 52747200.

The previous prime is 90567209. The next prime is 90567229. The reversal of 90567213 is 31276509.

It is not a de Polignac number, because 90567213 - 2² = 90567209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90567263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227931 + ... + 228327.

It is an arithmetic number, because the mean of its divisors is an integer number (4279296).

Almost surely, 2^90567213 is an apocalyptic number.

90567213 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

90567213 is a deficient number, since it is larger than the sum of its proper divisors (46370259).

90567213 is a wasteful number, since it uses less digits than its factorization.

90567213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 90567213 is about 9516.6807764052. The cubic root of 90567213 is about 449.0799522968.

The spelling of 90567213 in words is "ninety million, five hundred sixty-seven thousand, two hundred thirteen".