89247870 has 24 divisors (see below), whose sum is σ = 232044696. Its totient is φ = 23799408.

The previous prime is 89247859. The next prime is 89247887. The reversal of 89247870 is 7874298.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent 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, 495732 + ... + 495911.

It is an arithmetic number, because the mean of its divisors is an integer number (9668529).

Almost surely, 2^89247870 is an apocalyptic number.

89247870 is an abundant number, since it is smaller than the sum of its proper divisors (142796826).

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

89247870 is a wasteful number, since it uses less digits than its factorization.

89247870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991656 (or 991653 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 89247870 is about 9447.1090816186. The cubic root of 89247870 is about 446.8886108949. Note that the first 3 decimals are identical.

The spelling of 89247870 in words is "eighty-nine million, two hundred forty-seven thousand, eight hundred seventy".