86783908 has 6 divisors (see below), whose sum is σ = 151871846. Its totient is φ = 43391952.

The previous prime is 86783891. The next prime is 86783923. The reversal of 86783908 is 80938768.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56070144 + 30713764 = 7488^2 + 5542^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10847985 + ... + 10847992.

Almost surely, 2^86783908 is an apocalyptic number.

It is an amenable number.

86783908 is a deficient number, since it is larger than the sum of its proper divisors (65087938).

86783908 is a wasteful number, since it uses less digits than its factorization.

86783908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21695981 (or 21695979 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 86783908 is about 9315.7881040736. The cubic root of 86783908 is about 442.7375944294.

The spelling of 86783908 in words is "eighty-six million, seven hundred eighty-three thousand, nine hundred eight".