90792661 has 4 divisors (see below), whose sum is σ = 94740192. Its totient is φ = 86845132.

The previous prime is 90792643. The next prime is 90792719. The reversal of 90792661 is 16629709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16629709 = 1913 ⋅8693.

It is a cyclic number.

It is not a de Polignac number, because 90792661 - 2¹¹ = 90790613 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90792601) 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, 1973731 + ... + 1973776.

It is an arithmetic number, because the mean of its divisors is an integer number (23685048).

Almost surely, 2^90792661 is an apocalyptic number.

It is an amenable number.

90792661 is a deficient number, since it is larger than the sum of its proper divisors (3947531).

90792661 is a wasteful number, since it uses less digits than its factorization.

90792661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947530.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 90792661 is about 9528.5183003445. The cubic root of 90792661 is about 449.4522735119.

The spelling of 90792661 in words is "ninety million, seven hundred ninety-two thousand, six hundred sixty-one".