90752977 has 16 divisors (see below), whose sum is σ = 107976960. Its totient is φ = 74628288.

The previous prime is 90752969. The next prime is 90752983. The reversal of 90752977 is 77925709.

It is a happy number.

It is not a de Polignac number, because 90752977 - 2³ = 90752969 is a prime.

It is a super-2 number, since 2×90752977² = 16472205668725058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90752957) 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, 32563 + ... + 35239.

It is an arithmetic number, because the mean of its divisors is an integer number (6748560).

Almost surely, 2^90752977 is an apocalyptic number.

It is an amenable number.

90752977 is a deficient number, since it is larger than the sum of its proper divisors (17223983).

90752977 is a wasteful number, since it uses less digits than its factorization.

90752977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880.

The product of its (nonzero) digits is 277830, while the sum is 46.

The square root of 90752977 is about 9526.4356923248. The cubic root of 90752977 is about 449.3867812021.

The spelling of 90752977 in words is "ninety million, seven hundred fifty-two thousand, nine hundred seventy-seven".