89692921 has 16 divisors (see below), whose sum is σ = 94610880. Its totient is φ = 84939840.

The previous prime is 89692891. The next prime is 89692927. The reversal of 89692921 is 12929698.

89692921 is a nontrivial binomial coefficient, being equal to C(13394, 2).

It is a cyclic number.

It is not a de Polignac number, because 89692921 - 2⁷ = 89692793 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89692927) 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, 395010 + ... + 395236.

It is an arithmetic number, because the mean of its divisors is an integer number (5913180).

Almost surely, 2^89692921 is an apocalyptic number.

89692921 is the 13393-rd triangular number and also the 6697-th hexagonal number.

89692921 is the 4465-th centered nonagonal number.

It is an amenable number.

89692921 is a deficient number, since it is larger than the sum of its proper divisors (4917959).

89692921 is a wasteful number, since it uses less digits than its factorization.

89692921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its digits is 139968, while the sum is 46.

The square root of 89692921 is about 9470.6346672227. The cubic root of 89692921 is about 447.6302104363.

The spelling of 89692921 in words is "eighty-nine million, six hundred ninety-two thousand, nine hundred twenty-one".