113672989 has 2 divisors, whose sum is σ = 113672990. Its totient is φ = 113672988.

The previous prime is 113672981. The next prime is 113673019. The reversal of 113672989 is 989276311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93799225 + 19873764 = 9685^2 + 4458^2 .

It is a cyclic number.

It is not a de Polignac number, because 113672989 - 2³ = 113672981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113672981) 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, 56836494 + 56836495.

It is an arithmetic number, because the mean of its divisors is an integer number (56836495).

Almost surely, 2^113672989 is an apocalyptic number.

It is an amenable number.

113672989 is a deficient number, since it is larger than the sum of its proper divisors (1).

113672989 is an equidigital number, since it uses as much as digits as its factorization.

113672989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 46.

The square root of 113672989 is about 10661.7535612112. The cubic root of 113672989 is about 484.4166849120.

The spelling of 113672989 in words is "one hundred thirteen million, six hundred seventy-two thousand, nine hundred eighty-nine".