90274177 has 4 divisors (see below), whose sum is σ = 103170496. Its totient is φ = 77377860.

The previous prime is 90274153. The next prime is 90274181. The reversal of 90274177 is 77147209.

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: 77147209 = 797 ⋅96797.

It is not a de Polignac number, because 90274177 - 2¹¹ = 90272129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90275177) 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, 6448149 + ... + 6448162.

It is an arithmetic number, because the mean of its divisors is an integer number (25792624).

Almost surely, 2^90274177 is an apocalyptic number.

It is an amenable number.

90274177 is a deficient number, since it is larger than the sum of its proper divisors (12896319).

90274177 is a wasteful number, since it uses less digits than its factorization.

90274177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12896318.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 90274177 is about 9501.2723884751. The cubic root of 90274177 is about 448.5950866965.

The spelling of 90274177 in words is "ninety million, two hundred seventy-four thousand, one hundred seventy-seven".