85879499 has 2 divisors, whose sum is σ = 85879500. Its totient is φ = 85879498.

The previous prime is 85879439. The next prime is 85879513. The reversal of 85879499 is 99497858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85879499 - 2⁸ = 85879243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85879429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42939749 + 42939750.

It is an arithmetic number, because the mean of its divisors is an integer number (42939750).

Almost surely, 2^85879499 is an apocalyptic number.

85879499 is a deficient number, since it is larger than the sum of its proper divisors (1).

85879499 is an equidigital number, since it uses as much as digits as its factorization.

85879499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 59.

The square root of 85879499 is about 9267.1192395480. The cubic root of 85879499 is about 441.1942401861.

The spelling of 85879499 in words is "eighty-five million, eight hundred seventy-nine thousand, four hundred ninety-nine".