86780768 has 12 divisors (see below), whose sum is σ = 170849700. Its totient is φ = 43390368.

The previous prime is 86780761. The next prime is 86780773. The reversal of 86780768 is 86708768.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86780761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1355918 + ... + 1355981.

It is an arithmetic number, because the mean of its divisors is an integer number (14237475).

Almost surely, 2^86780768 is an apocalyptic number.

It is an amenable number.

86780768 is a deficient number, since it is larger than the sum of its proper divisors (84068932).

86780768 is a wasteful number, since it uses less digits than its factorization.

86780768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711909 (or 2711901 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 86780768 is about 9315.6195714510. The cubic root of 86780768 is about 442.7322546806.

The spelling of 86780768 in words is "eighty-six million, seven hundred eighty thousand, seven hundred sixty-eight".