90877664 has 12 divisors (see below), whose sum is σ = 178915464. Its totient is φ = 45438816.

The previous prime is 90877663. The next prime is 90877697. The reversal of 90877664 is 46677809.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90877663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1419932 + ... + 1419995.

It is an arithmetic number, because the mean of its divisors is an integer number (14909622).

Almost surely, 2^90877664 is an apocalyptic number.

It is an amenable number.

90877664 is a deficient number, since it is larger than the sum of its proper divisors (88037800).

90877664 is a wasteful number, since it uses less digits than its factorization.

90877664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839937 (or 2839929 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 90877664 is about 9532.9777089847. The cubic root of 90877664 is about 449.5924936374.

The spelling of 90877664 in words is "ninety million, eight hundred seventy-seven thousand, six hundred sixty-four".