89478770 has 16 divisors (see below), whose sum is σ = 161828928. Its totient is φ = 35621040.

The previous prime is 89478737. The next prime is 89478811. The reversal of 89478770 is 7787498.

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, 19094 + ... + 23313.

It is an arithmetic number, because the mean of its divisors is an integer number (10114308).

Almost surely, 2^89478770 is an apocalyptic number.

89478770 is a deficient number, since it is larger than the sum of its proper divisors (72350158).

89478770 is a wasteful number, since it uses less digits than its factorization.

89478770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42625.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 89478770 is about 9459.3218573003. The cubic root of 89478770 is about 447.2736722625.

The spelling of 89478770 in words is "eighty-nine million, four hundred seventy-eight thousand, seven hundred seventy".