86577251 has 2 divisors, whose sum is σ = 86577252. Its totient is φ = 86577250.

The previous prime is 86577229. The next prime is 86577263. The reversal of 86577251 is 15277568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86577251 - 2¹⁴ = 86560867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86577199 and 86577208.

It is not a weakly prime, because it can be changed into another prime (86576251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43288625 + 43288626.

It is an arithmetic number, because the mean of its divisors is an integer number (43288626).

Almost surely, 2^86577251 is an apocalyptic number.

86577251 is a deficient number, since it is larger than the sum of its proper divisors (1).

86577251 is an equidigital number, since it uses as much as digits as its factorization.

86577251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 41.

The square root of 86577251 is about 9304.6897315279. The cubic root of 86577251 is about 442.3858873507.

The spelling of 86577251 in words is "eighty-six million, five hundred seventy-seven thousand, two hundred fifty-one".