89961313 has 4 divisors (see below), whose sum is σ = 96881428. Its totient is φ = 83041200.

The previous prime is 89961301. The next prime is 89961341. The reversal of 89961313 is 31316998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 83320384 = 2577^2 + 9128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89961313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89961373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3460038 + ... + 3460063.

It is an arithmetic number, because the mean of its divisors is an integer number (24220357).

Almost surely, 2^89961313 is an apocalyptic number.

It is an amenable number.

89961313 is a deficient number, since it is larger than the sum of its proper divisors (6920115).

89961313 is a wasteful number, since it uses less digits than its factorization.

89961313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920114.

The product of its digits is 34992, while the sum is 40.

The square root of 89961313 is about 9484.7937774102. The cubic root of 89961313 is about 448.0762535620.

The spelling of 89961313 in words is "eighty-nine million, nine hundred sixty-one thousand, three hundred thirteen".