89163580 has 96 divisors (see below), whose sum is σ = 218453760. Its totient is φ = 30228480.

The previous prime is 89163577. The next prime is 89163583. The reversal of 89163580 is 8536198.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89163577) and next prime (89163583).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89163583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346812 + ... + 347068.

It is an arithmetic number, because the mean of its divisors is an integer number (2275560).

Almost surely, 2^89163580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89163580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109226880).

89163580 is an abundant number, since it is smaller than the sum of its proper divisors (129290180).

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

89163580 is a wasteful number, since it uses less digits than its factorization.

89163580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 89163580 is about 9442.6468746851. The cubic root of 89163580 is about 446.7478788497.

The spelling of 89163580 in words is "eighty-nine million, one hundred sixty-three thousand, five hundred eighty".