89956973 has 2 divisors, whose sum is σ = 89956974. Its totient is φ = 89956972.

The previous prime is 89956969. The next prime is 89956991. The reversal of 89956973 is 37965998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67848169 + 22108804 = 8237^2 + 4702^2 .

It is a cyclic number.

It is not a de Polignac number, because 89956973 - 2² = 89956969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89956913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44978486 + 44978487.

It is an arithmetic number, because the mean of its divisors is an integer number (44978487).

Almost surely, 2^89956973 is an apocalyptic number.

It is an amenable number.

89956973 is a deficient number, since it is larger than the sum of its proper divisors (1).

89956973 is an equidigital number, since it uses as much as digits as its factorization.

89956973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 56.

The square root of 89956973 is about 9484.5649873887. The cubic root of 89956973 is about 448.0690479379.

The spelling of 89956973 in words is "eighty-nine million, nine hundred fifty-six thousand, nine hundred seventy-three".