89566438 has 16 divisors (see below), whose sum is σ = 153195840. Its totient is φ = 38906496.

The previous prime is 89566391. The next prime is 89566447. The reversal of 89566438 is 83466598.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 89566391 and 89566400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100878 + ... + 101761.

It is an arithmetic number, because the mean of its divisors is an integer number (9574740).

Almost surely, 2^89566438 is an apocalyptic number.

89566438 is a deficient number, since it is larger than the sum of its proper divisors (63629402).

89566438 is a wasteful number, since it uses less digits than its factorization.

89566438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202671.

The product of its digits is 1244160, while the sum is 49.

The square root of 89566438 is about 9463.9546702211. The cubic root of 89566438 is about 447.4196986672.

The spelling of 89566438 in words is "eighty-nine million, five hundred sixty-six thousand, four hundred thirty-eight".