89981113 has 6 divisors (see below), whose sum is σ = 93191774. Its totient is φ = 86877504.

The previous prime is 89981107. The next prime is 89981137. The reversal of 89981113 is 31118998.

89981113 = 6707² + 6708².

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 44983849 + 44997264 = 6707^2 + 6708^2 .

It is not a de Polignac number, because 89981113 - 2⁵ = 89981081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89981713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52656 + ... + 54337.

Almost surely, 2^89981113 is an apocalyptic number.

89981113 is the 6708-th centered square number.

It is an amenable number.

89981113 is a deficient number, since it is larger than the sum of its proper divisors (3210661).

89981113 is a wasteful number, since it uses less digits than its factorization.

89981113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107051 (or 107022 counting only the distinct ones).

The product of its digits is 15552, while the sum is 40.

The square root of 89981113 is about 9485.8374959726. The cubic root of 89981113 is about 448.1091242065.

The spelling of 89981113 in words is "eighty-nine million, nine hundred eighty-one thousand, one hundred thirteen".