85422993 has 8 divisors (see below), whose sum is σ = 119892000. Its totient is φ = 53951328.

The previous prime is 85422979. The next prime is 85423007. The reversal of 85422993 is 39922458.

It is an interprime number because it is at equal distance from previous prime (85422979) and next prime (85423007).

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

It is not a de Polignac number, because 85422993 - 2⁹ = 85422481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85422913) 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, 749268 + ... + 749381.

It is an arithmetic number, because the mean of its divisors is an integer number (14986500).

Almost surely, 2^85422993 is an apocalyptic number.

It is an amenable number.

85422993 is a deficient number, since it is larger than the sum of its proper divisors (34469007).

85422993 is a wasteful number, since it uses less digits than its factorization.

85422993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498671.

The product of its digits is 155520, while the sum is 42.

The square root of 85422993 is about 9242.4560047641. The cubic root of 85422993 is about 440.4111050977.

The spelling of 85422993 in words is "eighty-five million, four hundred twenty-two thousand, nine hundred ninety-three".