85982774 has 4 divisors (see below), whose sum is σ = 128974164. Its totient is φ = 42991386.

The previous prime is 85982773. The next prime is 85982791. The reversal of 85982774 is 47728958.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85982773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21495692 + ... + 21495695.

It is an arithmetic number, because the mean of its divisors is an integer number (32243541).

Almost surely, 2^85982774 is an apocalyptic number.

85982774 is a deficient number, since it is larger than the sum of its proper divisors (42991390).

85982774 is a wasteful number, since it uses less digits than its factorization.

85982774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42991389.

The product of its digits is 1128960, while the sum is 50.

The square root of 85982774 is about 9272.6896853071. The cubic root of 85982774 is about 441.3710230943.

The spelling of 85982774 in words is "eighty-five million, nine hundred eighty-two thousand, seven hundred seventy-four".