90790667 has 4 divisors (see below), whose sum is σ = 99044376. Its totient is φ = 82536960.

The previous prime is 90790657. The next prime is 90790669. The reversal of 90790667 is 76609709.

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

It is not a de Polignac number, because 90790667 - 2¹⁸ = 90528523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90790669) 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, 4126838 + ... + 4126859.

It is an arithmetic number, because the mean of its divisors is an integer number (24761094).

Almost surely, 2^90790667 is an apocalyptic number.

90790667 is a deficient number, since it is larger than the sum of its proper divisors (8253709).

90790667 is a wasteful number, since it uses less digits than its factorization.

90790667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253708.

The product of its (nonzero) digits is 142884, while the sum is 44.

The square root of 90790667 is about 9528.4136665029. The cubic root of 90790667 is about 449.4489831785.

The spelling of 90790667 in words is "ninety million, seven hundred ninety thousand, six hundred sixty-seven".