87397259 has 2 divisors, whose sum is σ = 87397260. Its totient is φ = 87397258.

The previous prime is 87397253. The next prime is 87397273. The reversal of 87397259 is 95279378.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87397259 - 2⁸ = 87397003 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87397253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43698629 + 43698630.

It is an arithmetic number, because the mean of its divisors is an integer number (43698630).

Almost surely, 2^87397259 is an apocalyptic number.

87397259 is a deficient number, since it is larger than the sum of its proper divisors (1).

87397259 is an equidigital number, since it uses as much as digits as its factorization.

87397259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 50.

The square root of 87397259 is about 9348.6501164607. The cubic root of 87397259 is about 443.7781725419.

The spelling of 87397259 in words is "eighty-seven million, three hundred ninety-seven thousand, two hundred fifty-nine".