89956780 has 12 divisors (see below), whose sum is σ = 188909280. Its totient is φ = 35982704.

The previous prime is 89956771. The next prime is 89956781. The reversal of 89956780 is 8765998.

It is not an unprimeable number, because it can be changed into a prime (89956781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248900 + ... + 2248939.

It is an arithmetic number, because the mean of its divisors is an integer number (15742440).

Almost surely, 2^89956780 is an apocalyptic number.

It is an amenable number.

89956780 is an abundant number, since it is smaller than the sum of its proper divisors (98952500).

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

89956780 is a wasteful number, since it uses less digits than its factorization.

89956780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497848 (or 4497846 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 89956780 is about 9484.5548129577. The cubic root of 89956780 is about 448.0687274981.

The spelling of 89956780 in words is "eighty-nine million, nine hundred fifty-six thousand, seven hundred eighty".