85749886 has 4 divisors (see below), whose sum is σ = 128624832. Its totient is φ = 42874942.

The previous prime is 85749871. The next prime is 85749913. The reversal of 85749886 is 68894758.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21437470 + ... + 21437473.

It is an arithmetic number, because the mean of its divisors is an integer number (32156208).

Almost surely, 2^85749886 is an apocalyptic number.

85749886 is a deficient number, since it is larger than the sum of its proper divisors (42874946).

85749886 is a wasteful number, since it uses less digits than its factorization.

85749886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42874945.

The product of its digits is 3870720, while the sum is 55.

The square root of 85749886 is about 9260.1234333026. The cubic root of 85749886 is about 440.9721720468.

The spelling of 85749886 in words is "eighty-five million, seven hundred forty-nine thousand, eight hundred eighty-six".