86785982 has 4 divisors (see below), whose sum is σ = 130178976. Its totient is φ = 43392990.

The previous prime is 86785973. The next prime is 86785987. The reversal of 86785982 is 28958768.

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 (86785987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21696494 + ... + 21696497.

It is an arithmetic number, because the mean of its divisors is an integer number (32544744).

Almost surely, 2^86785982 is an apocalyptic number.

86785982 is a deficient number, since it is larger than the sum of its proper divisors (43392994).

86785982 is a wasteful number, since it uses less digits than its factorization.

86785982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43392993.

The product of its digits is 1935360, while the sum is 53.

The square root of 86785982 is about 9315.8994198091. The cubic root of 86785982 is about 442.7411213139.

The spelling of 86785982 in words is "eighty-six million, seven hundred eighty-five thousand, nine hundred eighty-two".