89564631337 has 4 divisors (see below), whose sum is σ = 89608775620. Its totient is φ = 89520487056.

The previous prime is 89564631293. The next prime is 89564631347. The reversal of 89564631337 is 73313646598.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73313646598 = 2 ⋅36656823299.

It can be written as a sum of positive squares in 2 ways, for example, as 50482899856 + 39081731481 = 224684^2 + 197691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89564631337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89564631347) 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, 22069098 + ... + 22073155.

It is an arithmetic number, because the mean of its divisors is an integer number (22402193905).

Almost surely, 2^89564631337 is an apocalyptic number.

It is an amenable number.

89564631337 is a deficient number, since it is larger than the sum of its proper divisors (44144283).

89564631337 is a wasteful number, since it uses less digits than its factorization.

89564631337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44144282.

The product of its digits is 9797760, while the sum is 55.

The spelling of 89564631337 in words is "eighty-nine billion, five hundred sixty-four million, six hundred thirty-one thousand, three hundred thirty-seven".