96721920 has 132 divisors (see below), whose sum is σ = 335298600. Its totient is φ = 25780224.

The previous prime is 96721903. The next prime is 96721939. The reversal of 96721920 is 2912769.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45031 + ... + 47129.

Almost surely, 2^96721920 is an apocalyptic number.

96721920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 96721920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167649300).

96721920 is an abundant number, since it is smaller than the sum of its proper divisors (238576680).

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

96721920 is a wasteful number, since it uses less digits than its factorization.

96721920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 96721920 is about 9834.7302962511. The cubic root of 96721920 is about 459.0305987262.

The spelling of 96721920 in words is "ninety-six million, seven hundred twenty-one thousand, nine hundred twenty".