85102379 has 2 divisors, whose sum is σ = 85102380. Its totient is φ = 85102378.

The previous prime is 85102363. The next prime is 85102427. The reversal of 85102379 is 97320158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85102379 - 2⁴ = 85102363 is a prime.

It is a super-2 number, since 2×85102379² = 14484829822919282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85102309) 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, 42551189 + 42551190.

It is an arithmetic number, because the mean of its divisors is an integer number (42551190).

Almost surely, 2^85102379 is an apocalyptic number.

85102379 is a deficient number, since it is larger than the sum of its proper divisors (1).

85102379 is an equidigital number, since it uses as much as digits as its factorization.

85102379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 85102379 is about 9225.0950672608. The cubic root of 85102379 is about 439.8594230666.

The spelling of 85102379 in words is "eighty-five million, one hundred two thousand, three hundred seventy-nine".