85582774 has 4 divisors (see below), whose sum is σ = 128374164. Its totient is φ = 42791386.

The previous prime is 85582759. The next prime is 85582781. The reversal of 85582774 is 47728558.

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

It is a super-2 number, since 2×85582774² = 14648822411070152, which contains 22 as substring.

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, 21395692 + ... + 21395695.

It is an arithmetic number, because the mean of its divisors is an integer number (32093541).

Almost surely, 2^85582774 is an apocalyptic number.

85582774 is a deficient number, since it is larger than the sum of its proper divisors (42791390).

85582774 is a wasteful number, since it uses less digits than its factorization.

85582774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42791389.

The product of its digits is 627200, while the sum is 46.

The square root of 85582774 is about 9251.0958269818. The cubic root of 85582774 is about 440.6855257399.

The spelling of 85582774 in words is "eighty-five million, five hundred eighty-two thousand, seven hundred seventy-four".