89691236 has 6 divisors (see below), whose sum is σ = 156959670. Its totient is φ = 44845616.

The previous prime is 89691233. The next prime is 89691241. The reversal of 89691236 is 63219698.

It can be written as a sum of positive squares in only one way, i.e., 74822500 + 14868736 = 8650^2 + 3856^2 .

It is not an unprimeable number, because it can be changed into a prime (89691233) 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 as a sum of consecutive naturals, namely, 11211401 + ... + 11211408.

It is an arithmetic number, because the mean of its divisors is an integer number (26159945).

Almost surely, 2^89691236 is an apocalyptic number.

It is an amenable number.

89691236 is a deficient number, since it is larger than the sum of its proper divisors (67268434).

89691236 is a wasteful number, since it uses less digits than its factorization.

89691236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22422813 (or 22422811 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 89691236 is about 9470.5457076137. The cubic root of 89691236 is about 447.6274073104.

The spelling of 89691236 in words is "eighty-nine million, six hundred ninety-one thousand, two hundred thirty-six".