89440097 has 4 divisors (see below), whose sum is σ = 91127700. Its totient is φ = 87752496.

The previous prime is 89440067. The next prime is 89440103. The reversal of 89440097 is 79004498.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79004498 = 2 ⋅39502249.

It can be written as a sum of positive squares in 2 ways, for example, as 22052416 + 67387681 = 4696^2 + 8209^2 .

It is a cyclic number.

It is not a de Polignac number, because 89440097 - 2⁶ = 89440033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89440007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843722 + ... + 843827.

It is an arithmetic number, because the mean of its divisors is an integer number (22781925).

Almost surely, 2^89440097 is an apocalyptic number.

It is an amenable number.

89440097 is a deficient number, since it is larger than the sum of its proper divisors (1687603).

89440097 is a wasteful number, since it uses less digits than its factorization.

89440097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687602.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 89440097 is about 9457.2774623567. The cubic root of 89440097 is about 447.2092252906.

The spelling of 89440097 in words is "eighty-nine million, four hundred forty thousand, ninety-seven".