89972769 has 16 divisors (see below), whose sum is σ = 122093568. Its totient is φ = 58926672.

The previous prime is 89972749. The next prime is 89972783. The reversal of 89972769 is 96727998.

It is not a de Polignac number, because 89972769 - 2⁹ = 89972257 is a prime.

It is a super-2 number, since 2×89972769² = 16190198323054722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89972749) 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 15 ways as a sum of consecutive naturals, for example, 39664 + ... + 41870.

It is an arithmetic number, because the mean of its divisors is an integer number (7630848).

Almost surely, 2^89972769 is an apocalyptic number.

It is an amenable number.

89972769 is a deficient number, since it is larger than the sum of its proper divisors (32120799).

89972769 is a wasteful number, since it uses less digits than its factorization.

89972769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444.

The product of its digits is 3429216, while the sum is 57.

The square root of 89972769 is about 9485.3976722117. The cubic root of 89972769 is about 448.0952726400.

The spelling of 89972769 in words is "eighty-nine million, nine hundred seventy-two thousand, seven hundred sixty-nine".