86984993 has 2 divisors, whose sum is σ = 86984994. Its totient is φ = 86984992.

The previous prime is 86984981. The next prime is 86985023. The reversal of 86984993 is 39948968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61653904 + 25331089 = 7852^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 86984993 - 2⁶ = 86984929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86989993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43492496 + 43492497.

It is an arithmetic number, because the mean of its divisors is an integer number (43492497).

Almost surely, 2^86984993 is an apocalyptic number.

It is an amenable number.

86984993 is a deficient number, since it is larger than the sum of its proper divisors (1).

86984993 is an equidigital number, since it uses as much as digits as its factorization.

86984993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 56.

The square root of 86984993 is about 9326.5745587541. The cubic root of 86984993 is about 443.0792830293.

The spelling of 86984993 in words is "eighty-six million, nine hundred eighty-four thousand, nine hundred ninety-three".