85020697 has 4 divisors (see below), whose sum is σ = 86829696. Its totient is φ = 83211700.

The previous prime is 85020667. The next prime is 85020731. The reversal of 85020697 is 79602058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85020697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85020667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904429 + ... + 904522.

It is an arithmetic number, because the mean of its divisors is an integer number (21707424).

Almost surely, 2^85020697 is an apocalyptic number.

It is an amenable number.

85020697 is a deficient number, since it is larger than the sum of its proper divisors (1808999).

85020697 is a wasteful number, since it uses less digits than its factorization.

85020697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808998.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 85020697 is about 9220.6668413949. Note that the first 3 decimals coincide. The cubic root of 85020697 is about 439.7186510584.

The spelling of 85020697 in words is "eighty-five million, twenty thousand, six hundred ninety-seven".