89188497 has 6 divisors (see below), whose sum is σ = 128827842. Its totient is φ = 59458992.

The previous prime is 89188447. The next prime is 89188499. The reversal of 89188497 is 79488198.

It can be written as a sum of positive squares in only one way, i.e., 61214976 + 27973521 = 7824^2 + 5289^2 .

It is not a de Polignac number, because 89188497 - 2¹⁰ = 89187473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89188499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4954908 + ... + 4954925.

It is an arithmetic number, because the mean of its divisors is an integer number (21471307).

Almost surely, 2^89188497 is an apocalyptic number.

It is an amenable number.

89188497 is a deficient number, since it is larger than the sum of its proper divisors (39639345).

89188497 is a wasteful number, since it uses less digits than its factorization.

89188497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909839 (or 9909836 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 89188497 is about 9443.9661689356. The cubic root of 89188497 is about 446.7894899356.

The spelling of 89188497 in words is "eighty-nine million, one hundred eighty-eight thousand, four hundred ninety-seven".