85122993 has 8 divisors (see below), whose sum is σ = 117158656. Its totient is φ = 54918000.

The previous prime is 85122991. The next prime is 85123007. The reversal of 85122993 is 39922158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85122993 - 2¹ = 85122991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85122991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457558 + ... + 457743.

It is an arithmetic number, because the mean of its divisors is an integer number (14644832).

Almost surely, 2^85122993 is an apocalyptic number.

It is an amenable number.

85122993 is a deficient number, since it is larger than the sum of its proper divisors (32035663).

85122993 is a wasteful number, since it uses less digits than its factorization.

85122993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915335.

The product of its digits is 38880, while the sum is 39.

The square root of 85122993 is about 9226.2122780695. The cubic root of 85122993 is about 439.8949353137.

The spelling of 85122993 in words is "eighty-five million, one hundred twenty-two thousand, nine hundred ninety-three".