90970451 has 32 divisors (see below), whose sum is σ = 118153728. Its totient is φ = 68682240.

The previous prime is 90970433. The next prime is 90970469. The reversal of 90970451 is 15407909.

It is an interprime number because it is at equal distance from previous prime (90970433) and next prime (90970469).

It is not a de Polignac number, because 90970451 - 2⁶ = 90970387 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (90972451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55100 + ... + 56726.

It is an arithmetic number, because the mean of its divisors is an integer number (3692304).

Almost surely, 2^90970451 is an apocalyptic number.

90970451 is a deficient number, since it is larger than the sum of its proper divisors (27183277).

90970451 is a wasteful number, since it uses less digits than its factorization.

90970451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 90970451 is about 9537.8430999886. The cubic root of 90970451 is about 449.7454543956.

The spelling of 90970451 in words is "ninety million, nine hundred seventy thousand, four hundred fifty-one".