87257299 has 2 divisors, whose sum is σ = 87257300. Its totient is φ = 87257298.

The previous prime is 87257297. The next prime is 87257327. The reversal of 87257299 is 99275278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87257299 - 2¹ = 87257297 is a prime.

It is a super-2 number, since 2×87257299² = 15227672457550802, which contains 22 as substring.

Together with 87257297, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87257297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43628649 + 43628650.

It is an arithmetic number, because the mean of its divisors is an integer number (43628650).

Almost surely, 2^87257299 is an apocalyptic number.

87257299 is a deficient number, since it is larger than the sum of its proper divisors (1).

87257299 is an equidigital number, since it uses as much as digits as its factorization.

87257299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 49.

The square root of 87257299 is about 9341.1615444761. The cubic root of 87257299 is about 443.5411537509.

The spelling of 87257299 in words is "eighty-seven million, two hundred fifty-seven thousand, two hundred ninety-nine".