28723699 has 8 divisors (see below), whose sum is σ = 29530160. Its totient is φ = 27923616.

The previous prime is 28723691. The next prime is 28723703. The reversal of 28723699 is 99632782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28723699 - 2³ = 28723691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28723691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8389 + ... + 11305.

It is an arithmetic number, because the mean of its divisors is an integer number (3691270).

Almost surely, 2^28723699 is an apocalyptic number.

28723699 is a deficient number, since it is larger than the sum of its proper divisors (806461).

28723699 is a wasteful number, since it uses less digits than its factorization.

28723699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189.

The product of its digits is 326592, while the sum is 46.

The square root of 28723699 is about 5359.4495053130. The cubic root of 28723699 is about 306.2528382911.

The spelling of 28723699 in words is "twenty-eight million, seven hundred twenty-three thousand, six hundred ninety-nine".