85749775 has 12 divisors (see below), whose sum is σ = 106515504. Its totient is φ = 68480000.

The previous prime is 85749743. The next prime is 85749787. The reversal of 85749775 is 57794758.

It is not a de Polignac number, because 85749775 - 2⁵ = 85749743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13350 + ... + 18700.

It is an arithmetic number, because the mean of its divisors is an integer number (8876292).

Almost surely, 2^85749775 is an apocalyptic number.

85749775 is a deficient number, since it is larger than the sum of its proper divisors (20765729).

85749775 is a wasteful number, since it uses less digits than its factorization.

85749775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6002 (or 5997 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 52.

The square root of 85749775 is about 9260.1174398600. The cubic root of 85749775 is about 440.9719817728.

The spelling of 85749775 in words is "eighty-five million, seven hundred forty-nine thousand, seven hundred seventy-five".