89489540 has 24 divisors (see below), whose sum is σ = 214775232. Its totient is φ = 30682080.

The previous prime is 89489509. The next prime is 89489597. The reversal of 89489540 is 4598498.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319466 + ... + 319745.

It is an arithmetic number, because the mean of its divisors is an integer number (8948968).

Almost surely, 2^89489540 is an apocalyptic number.

It is an amenable number.

89489540 is an abundant number, since it is smaller than the sum of its proper divisors (125285692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89489540 is a wasteful number, since it uses less digits than its factorization.

89489540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639227 (or 639225 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 89489540 is about 9459.8911198808. The cubic root of 89489540 is about 447.2916167209.

The spelling of 89489540 in words is "eighty-nine million, four hundred eighty-nine thousand, five hundred forty".