89808478 has 16 divisors (see below), whose sum is σ = 142243920. Its totient is φ = 42408576.

The previous prime is 89808473. The next prime is 89808487. The reversal of 89808478 is 87480898.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89808473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9300 + ... + 16312.

It is an arithmetic number, because the mean of its divisors is an integer number (8890245).

Almost surely, 2^89808478 is an apocalyptic number.

89808478 is a deficient number, since it is larger than the sum of its proper divisors (52435442).

89808478 is a wasteful number, since it uses less digits than its factorization.

89808478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7371.

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 89808478 is about 9476.7335089682. The cubic root of 89808478 is about 447.8223646042.

The spelling of 89808478 in words is "eighty-nine million, eight hundred eight thousand, four hundred seventy-eight".