85765982 has 4 divisors (see below), whose sum is σ = 128648976. Its totient is φ = 42882990.

The previous prime is 85765949. The next prime is 85765987. The reversal of 85765982 is 28956758.

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

It is a self number, because there is not a number n which added to its sum of digits gives 85765982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85765987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21441494 + ... + 21441497.

It is an arithmetic number, because the mean of its divisors is an integer number (32162244).

Almost surely, 2^85765982 is an apocalyptic number.

85765982 is a deficient number, since it is larger than the sum of its proper divisors (42882994).

85765982 is a wasteful number, since it uses less digits than its factorization.

85765982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42882993.

The product of its digits is 1209600, while the sum is 50.

The square root of 85765982 is about 9260.9924954078. The cubic root of 85765982 is about 440.9997617589. Note that the first 3 decimals are identical.

The spelling of 85765982 in words is "eighty-five million, seven hundred sixty-five thousand, nine hundred eighty-two".