85697753 has 4 divisors (see below), whose sum is σ = 87690768. Its totient is φ = 83704740.

The previous prime is 85697743. The next prime is 85697783. The reversal of 85697753 is 35779658.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35779658 = 2 ⋅17889829.

It is a cyclic number.

It is not a de Polignac number, because 85697753 - 2⁴ = 85697737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85697713) 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, 996443 + ... + 996528.

It is an arithmetic number, because the mean of its divisors is an integer number (21922692).

Almost surely, 2^85697753 is an apocalyptic number.

It is an amenable number.

85697753 is a deficient number, since it is larger than the sum of its proper divisors (1993015).

85697753 is a wasteful number, since it uses less digits than its factorization.

85697753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993014.

The product of its digits is 1587600, while the sum is 50.

The square root of 85697753 is about 9257.3080860475. The cubic root of 85697753 is about 440.8827885938.

The spelling of 85697753 in words is "eighty-five million, six hundred ninety-seven thousand, seven hundred fifty-three".