88721964 has 36 divisors (see below), whose sum is σ = 226797480. Its totient is φ = 29240640.

The previous prime is 88721959. The next prime is 88721987. The reversal of 88721964 is 46912788.

It is a tau number, because it is divible by the number of its divisors (36).

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, 10642 + ... + 17049.

It is an arithmetic number, because the mean of its divisors is an integer number (6299930).

Almost surely, 2^88721964 is an apocalyptic number.

It is an amenable number.

88721964 is an abundant number, since it is smaller than the sum of its proper divisors (138075516).

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

88721964 is a wasteful number, since it uses less digits than its factorization.

88721964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27790 (or 27785 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 88721964 is about 9419.2337267954. The cubic root of 88721964 is about 446.0090957813.

The spelling of 88721964 in words is "eighty-eight million, seven hundred twenty-one thousand, nine hundred sixty-four".