85792457 has 2 divisors, whose sum is σ = 85792458. Its totient is φ = 85792456.

The previous prime is 85792433. The next prime is 85792463. The reversal of 85792457 is 75429758.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62473216 + 23319241 = 7904^2 + 4829^2 .

It is a cyclic number.

It is not a de Polignac number, because 85792457 - 2¹² = 85788361 is a prime.

It is not a weakly prime, because it can be changed into another prime (85792417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42896228 + 42896229.

It is an arithmetic number, because the mean of its divisors is an integer number (42896229).

Almost surely, 2^85792457 is an apocalyptic number.

It is an amenable number.

85792457 is a deficient number, since it is larger than the sum of its proper divisors (1).

85792457 is an equidigital number, since it uses as much as digits as its factorization.

85792457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 85792457 is about 9262.4217675509. The cubic root of 85792457 is about 441.0451343230.

The spelling of 85792457 in words is "eighty-five million, seven hundred ninety-two thousand, four hundred fifty-seven".