85200979 has 2 divisors, whose sum is σ = 85200980. Its totient is φ = 85200978.

The previous prime is 85200967. The next prime is 85201003. The reversal of 85200979 is 97900258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85200979 - 2¹³ = 85192787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85204979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42600489 + 42600490.

It is an arithmetic number, because the mean of its divisors is an integer number (42600490).

Almost surely, 2^85200979 is an apocalyptic number.

85200979 is a deficient number, since it is larger than the sum of its proper divisors (1).

85200979 is an equidigital number, since it uses as much as digits as its factorization.

85200979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 85200979 is about 9230.4376385955. The cubic root of 85200979 is about 440.0292318733.

The spelling of 85200979 in words is "eighty-five million, two hundred thousand, nine hundred seventy-nine".