89494647 has 32 divisors (see below), whose sum is σ = 139947264. Its totient is φ = 50265600.

The previous prime is 89494637. The next prime is 89494651. The reversal of 89494647 is 74649498.

It is a de Polignac number, because none of the positive numbers 2^k-89494647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 89494647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89494637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36397 + ... + 38777.

It is an arithmetic number, because the mean of its divisors is an integer number (4373352).

Almost surely, 2^89494647 is an apocalyptic number.

89494647 is a deficient number, since it is larger than the sum of its proper divisors (50452617).

89494647 is a wasteful number, since it uses less digits than its factorization.

89494647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479.

The product of its digits is 1741824, while the sum is 51.

The square root of 89494647 is about 9460.1610451408. The cubic root of 89494647 is about 447.3001252566.

The spelling of 89494647 in words is "eighty-nine million, four hundred ninety-four thousand, six hundred forty-seven".