89471868 has 24 divisors (see below), whose sum is σ = 209379072. Its totient is φ = 29736624.

The previous prime is 89471843. The next prime is 89471869. The reversal of 89471868 is 86817498.

It is a self number, because there is not a number n which added to its sum of digits gives 89471868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89471869) 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, 6580 + ... + 14907.

It is an arithmetic number, because the mean of its divisors is an integer number (8724128).

Almost surely, 2^89471868 is an apocalyptic number.

It is an amenable number.

89471868 is an abundant number, since it is smaller than the sum of its proper divisors (119907204).

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

89471868 is a wasteful number, since it uses less digits than its factorization.

89471868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21841 (or 21839 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 89471868 is about 9458.9570249579. The cubic root of 89471868 is about 447.2621717234.

The spelling of 89471868 in words is "eighty-nine million, four hundred seventy-one thousand, eight hundred sixty-eight".