89660311 has 4 divisors (see below), whose sum is σ = 96557272. Its totient is φ = 82763352.

The previous prime is 89660309. The next prime is 89660321. The reversal of 89660311 is 11306698.

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

It is a cyclic number.

It is not a de Polignac number, because 89660311 - 2¹ = 89660309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89660321) 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, 3448461 + ... + 3448486.

It is an arithmetic number, because the mean of its divisors is an integer number (24139318).

Almost surely, 2^89660311 is an apocalyptic number.

89660311 is a deficient number, since it is larger than the sum of its proper divisors (6896961).

89660311 is a wasteful number, since it uses less digits than its factorization.

89660311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896960.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 89660311 is about 9468.9128731867. The cubic root of 89660311 is about 447.5759549818.

The spelling of 89660311 in words is "eighty-nine million, six hundred sixty thousand, three hundred eleven".