86984797 has 2 divisors, whose sum is σ = 86984798. Its totient is φ = 86984796.

The previous prime is 86984783. The next prime is 86984813. The reversal of 86984797 is 79748968.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86601636 + 383161 = 9306^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 86984797 - 2¹⁹ = 86460509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86984197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43492398 + 43492399.

It is an arithmetic number, because the mean of its divisors is an integer number (43492399).

Almost surely, 2^86984797 is an apocalyptic number.

It is an amenable number.

86984797 is a deficient number, since it is larger than the sum of its proper divisors (1).

86984797 is an equidigital number, since it uses as much as digits as its factorization.

86984797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The square root of 86984797 is about 9326.5640511391. The cubic root of 86984797 is about 443.0789502378.

The spelling of 86984797 in words is "eighty-six million, nine hundred eighty-four thousand, seven hundred ninety-seven".