86923749 has 16 divisors (see below), whose sum is σ = 126688320. Its totient is φ = 52575360.

The previous prime is 86923729. The next prime is 86923777. The reversal of 86923749 is 94732968.

It is not a de Polignac number, because 86923749 - 2⁵ = 86923717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86923698 and 86923707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86923709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16017 + ... + 20745.

It is an arithmetic number, because the mean of its divisors is an integer number (7918020).

Almost surely, 2^86923749 is an apocalyptic number.

It is an amenable number.

86923749 is a deficient number, since it is larger than the sum of its proper divisors (39764571).

86923749 is a wasteful number, since it uses less digits than its factorization.

86923749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300.

The product of its digits is 653184, while the sum is 48.

The square root of 86923749 is about 9323.2906744346. The cubic root of 86923749 is about 442.9752715298.

The spelling of 86923749 in words is "eighty-six million, nine hundred twenty-three thousand, seven hundred forty-nine".