90792771 has 4 divisors (see below), whose sum is σ = 121057032. Its totient is φ = 60528512.

The previous prime is 90792761. The next prime is 90792781. The reversal of 90792771 is 17729709.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17729709 = 3 ⋅5909903.

It is an interprime number because it is at equal distance from previous prime (90792761) and next prime (90792781).

It is a cyclic number.

It is not a de Polignac number, because 90792771 - 2⁷ = 90792643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90792731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15132126 + ... + 15132131.

It is an arithmetic number, because the mean of its divisors is an integer number (30264258).

Almost surely, 2^90792771 is an apocalyptic number.

90792771 is a deficient number, since it is larger than the sum of its proper divisors (30264261).

90792771 is a wasteful number, since it uses less digits than its factorization.

90792771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30264260.

The product of its (nonzero) digits is 55566, while the sum is 42.

The square root of 90792771 is about 9528.5240724889. The cubic root of 90792771 is about 449.4524550234.

The spelling of 90792771 in words is "ninety million, seven hundred ninety-two thousand, seven hundred seventy-one".