86980559 has 2 divisors, whose sum is σ = 86980560. Its totient is φ = 86980558.

The previous prime is 86980547. The next prime is 86980567. The reversal of 86980559 is 95508968.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86980559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86980589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43490279 + 43490280.

It is an arithmetic number, because the mean of its divisors is an integer number (43490280).

Almost surely, 2^86980559 is an apocalyptic number.

86980559 is a deficient number, since it is larger than the sum of its proper divisors (1).

86980559 is an equidigital number, since it uses as much as digits as its factorization.

86980559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 86980559 is about 9326.3368478733. The cubic root of 86980559 is about 443.0717543478.

The spelling of 86980559 in words is "eighty-six million, nine hundred eighty thousand, five hundred fifty-nine".