86730720 has 96 divisors (see below), whose sum is σ = 276060960. Its totient is φ = 22886400.

The previous prime is 86730667. The next prime is 86730779. The reversal of 86730720 is 2703768.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47586 + ... + 49374.

It is an arithmetic number, because the mean of its divisors is an integer number (2875635).

Almost surely, 2^86730720 is an apocalyptic number.

86730720 is a gapful number since it is divisible by the number (80) 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 86730720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138030480).

86730720 is an abundant number, since it is smaller than the sum of its proper divisors (189330240).

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

86730720 is a wasteful number, since it uses less digits than its factorization.

86730720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 86730720 is about 9312.9329429563. The cubic root of 86730720 is about 442.6471278129.

The spelling of 86730720 in words is "eighty-six million, seven hundred thirty thousand, seven hundred twenty".