92973989 has 2 divisors, whose sum is σ = 92973990. Its totient is φ = 92973988.

The previous prime is 92973977. The next prime is 92973997. The reversal of 92973989 is 98937929.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84033889 + 8940100 = 9167^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 92973989 - 2²⁰ = 91925413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92973389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46486994 + 46486995.

It is an arithmetic number, because the mean of its divisors is an integer number (46486995).

Almost surely, 2^92973989 is an apocalyptic number.

It is an amenable number.

92973989 is a deficient number, since it is larger than the sum of its proper divisors (1).

92973989 is an equidigital number, since it uses as much as digits as its factorization.

92973989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 56.

The square root of 92973989 is about 9642.3020591558. The cubic root of 92973989 is about 453.0232466503.

The spelling of 92973989 in words is "ninety-two million, nine hundred seventy-three thousand, nine hundred eighty-nine".