989892373 has 2 divisors, whose sum is σ = 989892374. Its totient is φ = 989892372.

The previous prime is 989892367. The next prime is 989892389. The reversal of 989892373 is 373298989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 696009924 + 293882449 = 26382^2 + 17143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989892373 is a prime.

It is a super-2 number, since 2×989892373² = 1959773820247142258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989892313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494946186 + 494946187.

It is an arithmetic number, because the mean of its divisors is an integer number (494946187).

Almost surely, 2^989892373 is an apocalyptic number.

It is an amenable number.

989892373 is a deficient number, since it is larger than the sum of its proper divisors (1).

989892373 is an equidigital number, since it uses as much as digits as its factorization.

989892373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 58.

The square root of 989892373 is about 31462.5550933169. Note that the first 3 decimals coincide. The cubic root of 989892373 is about 996.6193752550.

The spelling of 989892373 in words is "nine hundred eighty-nine million, eight hundred ninety-two thousand, three hundred seventy-three".