86988399 has 16 divisors (see below), whose sum is σ = 119895552. Its totient is φ = 56067008.

The previous prime is 86988397. The next prime is 86988409. The reversal of 86988399 is 99388968.

It is a cyclic number.

It is not a de Polignac number, because 86988399 - 2¹ = 86988397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86988397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7987 + ... + 15419.

It is an arithmetic number, because the mean of its divisors is an integer number (7493472).

Almost surely, 2^86988399 is an apocalyptic number.

86988399 is a deficient number, since it is larger than the sum of its proper divisors (32907153).

86988399 is a wasteful number, since it uses less digits than its factorization.

86988399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566.

The product of its digits is 6718464, while the sum is 60.

The square root of 86988399 is about 9326.7571534805. The cubic root of 86988399 is about 443.0850660512.

The spelling of 86988399 in words is "eighty-six million, nine hundred eighty-eight thousand, three hundred ninety-nine".