86929917 has 4 divisors (see below), whose sum is σ = 115906560. Its totient is φ = 57953276.

The previous prime is 86929901. The next prime is 86929957. The reversal of 86929917 is 71992968.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86929917 - 2⁴ = 86929901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86929917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86929957) 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 in 3 ways as a sum of consecutive naturals, for example, 14488317 + ... + 14488322.

It is an arithmetic number, because the mean of its divisors is an integer number (28976640).

Almost surely, 2^86929917 is an apocalyptic number.

It is an amenable number.

86929917 is a deficient number, since it is larger than the sum of its proper divisors (28976643).

86929917 is a wasteful number, since it uses less digits than its factorization.

86929917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28976642.

The product of its digits is 489888, while the sum is 51.

The square root of 86929917 is about 9323.6214530621. The cubic root of 86929917 is about 442.9857489382.

The spelling of 86929917 in words is "eighty-six million, nine hundred twenty-nine thousand, nine hundred seventeen".