89547864 has 64 divisors (see below), whose sum is σ = 256650240. Its totient is φ = 25505280.

The previous prime is 89547863. The next prime is 89547877. The reversal of 89547864 is 46874598.

Its product of digits (1935360) is a multiple of the sum of its prime factors (1680).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89547863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72129 + ... + 73359.

It is an arithmetic number, because the mean of its divisors is an integer number (4010160).

Almost surely, 2^89547864 is an apocalyptic number.

89547864 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89547864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128325120).

89547864 is an abundant number, since it is smaller than the sum of its proper divisors (167102376).

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

89547864 is a wasteful number, since it uses less digits than its factorization.

89547864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1676 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 89547864 is about 9462.9733170923. The cubic root of 89547864 is about 447.3887683761.

The spelling of 89547864 in words is "eighty-nine million, five hundred forty-seven thousand, eight hundred sixty-four".