89564409 has 24 divisors (see below), whose sum is σ = 143455104. Its totient is φ = 53388000.

The previous prime is 89564401. The next prime is 89564413. The reversal of 89564409 is 90446598.

It is a happy number.

89564409 is a `hidden beast` number, since 89 + 564 + 4 + 0 + 9 = 666.

It is not a de Polignac number, because 89564409 - 2³ = 89564401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89564401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1377 + ... + 13454.

It is an arithmetic number, because the mean of its divisors is an integer number (5977296).

Almost surely, 2^89564409 is an apocalyptic number.

It is an amenable number.

89564409 is a deficient number, since it is larger than the sum of its proper divisors (53890695).

89564409 is a wasteful number, since it uses less digits than its factorization.

89564409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14909 (or 14906 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 89564409 is about 9463.8474734116. The cubic root of 89564409 is about 447.4163200898.

The spelling of 89564409 in words is "eighty-nine million, five hundred sixty-four thousand, four hundred nine".