89070978 has 8 divisors (see below), whose sum is σ = 178141968. Its totient is φ = 29690324.

The previous prime is 89070911. The next prime is 89070979. The reversal of 89070978 is 87907098.

It is a sphenic number, since it is the product of 3 distinct primes.

89070978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (89070979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7422576 + ... + 7422587.

It is an arithmetic number, because the mean of its divisors is an integer number (22267746).

Almost surely, 2^89070978 is an apocalyptic number.

89070978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

89070978 is a wasteful number, since it uses less digits than its factorization.

89070978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14845168.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 89070978 is about 9437.7422088124. The cubic root of 89070978 is about 446.5931666640.

The spelling of 89070978 in words is "eighty-nine million, seventy thousand, nine hundred seventy-eight".