864162457 has 2 divisors, whose sum is σ = 864162458. Its totient is φ = 864162456.

The previous prime is 864162407. The next prime is 864162469. The reversal of 864162457 is 754261468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 854743696 + 9418761 = 29236^2 + 3069^2 .

It is a cyclic number.

It is not a de Polignac number, because 864162457 - 2¹⁹ = 863638169 is a prime.

It is not a weakly prime, because it can be changed into another prime (864162407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432081228 + 432081229.

It is an arithmetic number, because the mean of its divisors is an integer number (432081229).

Almost surely, 2^864162457 is an apocalyptic number.

It is an amenable number.

864162457 is a deficient number, since it is larger than the sum of its proper divisors (1).

864162457 is an equidigital number, since it uses as much as digits as its factorization.

864162457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The square root of 864162457 is about 29396.6402331967. The cubic root of 864162457 is about 952.5003229057.

The spelling of 864162457 in words is "eight hundred sixty-four million, one hundred sixty-two thousand, four hundred fifty-seven".