86724487 has 2 divisors, whose sum is σ = 86724488. Its totient is φ = 86724486.

The previous prime is 86724481. The next prime is 86724503. The reversal of 86724487 is 78442768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86724487 - 2³ = 86724479 is a prime.

It is a super-2 number, since 2×86724487² = 15042273290826338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86724481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43362243 + 43362244.

It is an arithmetic number, because the mean of its divisors is an integer number (43362244).

Almost surely, 2^86724487 is an apocalyptic number.

86724487 is a deficient number, since it is larger than the sum of its proper divisors (1).

86724487 is an equidigital number, since it uses as much as digits as its factorization.

86724487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 46.

The square root of 86724487 is about 9312.5982947833. The cubic root of 86724487 is about 442.6365237823.

The spelling of 86724487 in words is "eighty-six million, seven hundred twenty-four thousand, four hundred eighty-seven".