86779654 has 16 divisors (see below), whose sum is σ = 141874992. Its totient is φ = 39568608.

The previous prime is 86779643. The next prime is 86779661. The reversal of 86779654 is 45697768.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 17949 + ... + 22264.

It is an arithmetic number, because the mean of its divisors is an integer number (8867187).

Almost surely, 2^86779654 is an apocalyptic number.

86779654 is a deficient number, since it is larger than the sum of its proper divisors (55095338).

86779654 is a wasteful number, since it uses less digits than its factorization.

86779654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40311.

The product of its digits is 2540160, while the sum is 52.

The square root of 86779654 is about 9315.5597792081. The cubic root of 86779654 is about 442.7303602292.

The spelling of 86779654 in words is "eighty-six million, seven hundred seventy-nine thousand, six hundred fifty-four".