90994177 has 4 divisors (see below), whose sum is σ = 91016640. Its totient is φ = 90971716.

The previous prime is 90994159. The next prime is 90994219. The reversal of 90994177 is 77149909.

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: 77149909 = 6343 ⋅12163.

It is a cyclic number.

It is not a de Polignac number, because 90994177 - 2¹⁹ = 90469889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90914177) 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, 3277 + ... + 13882.

It is an arithmetic number, because the mean of its divisors is an integer number (22754160).

Almost surely, 2^90994177 is an apocalyptic number.

It is an amenable number.

90994177 is a deficient number, since it is larger than the sum of its proper divisors (22463).

90994177 is a wasteful number, since it uses less digits than its factorization.

90994177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22462.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 90994177 is about 9539.0868011566. The cubic root of 90994177 is about 449.7845503621.

The spelling of 90994177 in words is "ninety million, nine hundred ninety-four thousand, one hundred seventy-seven".