89723018 has 24 divisors (see below), whose sum is σ = 170792064. Its totient is φ = 34956600.

The previous prime is 89722993. The next prime is 89723027. The reversal of 89723018 is 81032798.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40538 + ... + 42693.

It is an arithmetic number, because the mean of its divisors is an integer number (7116336).

Almost surely, 2^89723018 is an apocalyptic number.

89723018 is a deficient number, since it is larger than the sum of its proper divisors (81069046).

89723018 is a wasteful number, since it uses less digits than its factorization.

89723018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83258 (or 83251 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 89723018 is about 9472.2234982078. The cubic root of 89723018 is about 447.6802731750.

The spelling of 89723018 in words is "eighty-nine million, seven hundred twenty-three thousand, eighteen".