90771927 has 16 divisors (see below), whose sum is σ = 122293248. Its totient is φ = 59886720.

The previous prime is 90771917. The next prime is 90771931. The reversal of 90771927 is 72917709.

It is not a de Polignac number, because 90771927 - 2⁸ = 90771671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90771917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160948 + ... + 161510.

It is an arithmetic number, because the mean of its divisors is an integer number (7643328).

Almost surely, 2^90771927 is an apocalyptic number.

90771927 is a deficient number, since it is larger than the sum of its proper divisors (31521321).

90771927 is a wasteful number, since it uses less digits than its factorization.

90771927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030.

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

The square root of 90771927 is about 9527.4302411511. The cubic root of 90771927 is about 449.4180576300.

The spelling of 90771927 in words is "ninety million, seven hundred seventy-one thousand, nine hundred twenty-seven".