89772836 has 18 divisors (see below), whose sum is σ = 158640930. Its totient is φ = 44451072.

The previous prime is 89772833. The next prime is 89772847. The reversal of 89772836 is 63827798.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 27457600 + 62315236 = 5240^2 + 7894^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (89772833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46580 + ... + 48468.

It is an arithmetic number, because the mean of its divisors is an integer number (8813385).

Almost surely, 2^89772836 is an apocalyptic number.

It is an amenable number.

89772836 is a deficient number, since it is larger than the sum of its proper divisors (68868094).

89772836 is a wasteful number, since it uses less digits than its factorization.

89772836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2000 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 89772836 is about 9474.8528220759. The cubic root of 89772836 is about 447.7631148280.

The spelling of 89772836 in words is "eighty-nine million, seven hundred seventy-two thousand, eight hundred thirty-six".