90668977 has 8 divisors (see below), whose sum is σ = 104144000. Its totient is φ = 77324544.

The previous prime is 90668959. The next prime is 90669001. The reversal of 90668977 is 77986609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90668977 - 2¹⁹ = 90144689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90668927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31152 + ... + 33937.

It is an arithmetic number, because the mean of its divisors is an integer number (13018000).

Almost surely, 2^90668977 is an apocalyptic number.

It is an amenable number.

90668977 is a deficient number, since it is larger than the sum of its proper divisors (13475023).

90668977 is a wasteful number, since it uses less digits than its factorization.

90668977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65295.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 90668977 is about 9522.0258873834. The cubic root of 90668977 is about 449.2480891782.

The spelling of 90668977 in words is "ninety million, six hundred sixty-eight thousand, nine hundred seventy-seven".