86210297 has 2 divisors, whose sum is σ = 86210298. Its totient is φ = 86210296.

The previous prime is 86210291. The next prime is 86210317. The reversal of 86210297 is 79201268.

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., 85914361 + 295936 = 9269^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 86210297 - 2⁸ = 86210041 is a prime.

It is not a weakly prime, because it can be changed into another prime (86210291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43105148 + 43105149.

It is an arithmetic number, because the mean of its divisors is an integer number (43105149).

Almost surely, 2^86210297 is an apocalyptic number.

It is an amenable number.

86210297 is a deficient number, since it is larger than the sum of its proper divisors (1).

86210297 is an equidigital number, since it uses as much as digits as its factorization.

86210297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 86210297 is about 9284.9500267907. The cubic root of 86210297 is about 441.7599909749.

The spelling of 86210297 in words is "eighty-six million, two hundred ten thousand, two hundred ninety-seven".