90077666 has 16 divisors (see below), whose sum is σ = 155070720. Its totient is φ = 38441760.

The previous prime is 90077639. The next prime is 90077677. The reversal of 90077666 is 66677009.

It is a super-2 number, since 2×90077666² = 16227971824015112, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10115 + ... + 16806.

It is an arithmetic number, because the mean of its divisors is an integer number (9691920).

Almost surely, 2^90077666 is an apocalyptic number.

90077666 is a deficient number, since it is larger than the sum of its proper divisors (64993054).

90077666 is a wasteful number, since it uses less digits than its factorization.

90077666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27169.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 90077666 is about 9490.9254554021. The cubic root of 90077666 is about 448.2693460302.

The spelling of 90077666 in words is "ninety million, seventy-seven thousand, six hundred sixty-six".