90790655 has 8 divisors (see below), whose sum is σ = 109231200. Its totient is φ = 72444256.

The previous prime is 90790633. The next prime is 90790657. The reversal of 90790655 is 55609709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90790655 - 2¹⁰ = 90789631 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90790657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21395 + ... + 25284.

It is an arithmetic number, because the mean of its divisors is an integer number (13653900).

Almost surely, 2^90790655 is an apocalyptic number.

90790655 is a deficient number, since it is larger than the sum of its proper divisors (18440545).

90790655 is a wasteful number, since it uses less digits than its factorization.

90790655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47073.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 90790655 is about 9528.4130368073. The cubic root of 90790655 is about 449.4489633769.

The spelling of 90790655 in words is "ninety million, seven hundred ninety thousand, six hundred fifty-five".