89148720 has 40 divisors (see below), whose sum is σ = 276361776. Its totient is φ = 23772928.

The previous prime is 89148701. The next prime is 89148727. The reversal of 89148720 is 2784198.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (89148727) 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, 185487 + ... + 185966.

Almost surely, 2^89148720 is an apocalyptic number.

89148720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89148720 is an abundant number, since it is smaller than the sum of its proper divisors (187213056).

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

89148720 is a wasteful number, since it uses less digits than its factorization.

89148720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371469 (or 371463 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 89148720 is about 9441.8599862527. The cubic root of 89148720 is about 446.7230591408.

The spelling of 89148720 in words is "eighty-nine million, one hundred forty-eight thousand, seven hundred twenty".