86587982 has 32 divisors (see below), whose sum is σ = 146694240. Its totient is φ = 38062080.

The previous prime is 86587967. The next prime is 86587993. The reversal of 86587982 is 28978568.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44894 + ... + 46782.

It is an arithmetic number, because the mean of its divisors is an integer number (4584195).

Almost surely, 2^86587982 is an apocalyptic number.

86587982 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

86587982 is a deficient number, since it is larger than the sum of its proper divisors (60106258).

86587982 is a wasteful number, since it uses less digits than its factorization.

86587982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988.

The product of its digits is 1935360, while the sum is 53.

The square root of 86587982 is about 9305.2663583586. The cubic root of 86587982 is about 442.4041640796.

The spelling of 86587982 in words is "eighty-six million, five hundred eighty-seven thousand, nine hundred eighty-two".