85423757 has 8 divisors (see below), whose sum is σ = 89061984. Its totient is φ = 81860688.

The previous prime is 85423739. The next prime is 85423777. The reversal of 85423757 is 75732458.

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

It is a cyclic number.

It is not a de Polignac number, because 85423757 - 2¹⁸ = 85161613 is a prime.

It is a super-3 number, since 3×85423757³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85423777) 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, 16463 + ... + 21020.

It is an arithmetic number, because the mean of its divisors is an integer number (11132748).

Almost surely, 2^85423757 is an apocalyptic number.

It is an amenable number.

85423757 is a deficient number, since it is larger than the sum of its proper divisors (3638227).

85423757 is a wasteful number, since it uses less digits than its factorization.

85423757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37579.

The product of its digits is 235200, while the sum is 41.

The square root of 85423757 is about 9242.4973356772. The cubic root of 85423757 is about 440.4124180661.

The spelling of 85423757 in words is "eighty-five million, four hundred twenty-three thousand, seven hundred fifty-seven".