86997580 has 48 divisors (see below), whose sum is σ = 193536000. Its totient is φ = 32757696.

The previous prime is 86997577. The next prime is 86997629. The reversal of 86997580 is 8579968.

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, 67381 + ... + 68659.

It is an arithmetic number, because the mean of its divisors is an integer number (4032000).

Almost surely, 2^86997580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86997580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96768000).

86997580 is an abundant number, since it is smaller than the sum of its proper divisors (106538420).

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

86997580 is a wasteful number, since it uses less digits than its factorization.

86997580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486 (or 1484 counting only the distinct ones).

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

The square root of 86997580 is about 9327.2493265700. The cubic root of 86997580 is about 443.1006536503.

The spelling of 86997580 in words is "eighty-six million, nine hundred ninety-seven thousand, five hundred eighty".