28726695 has 12 divisors (see below), whose sum is σ = 49793016. Its totient is φ = 15320880.

The previous prime is 28726679. The next prime is 28726703. The reversal of 28726695 is 59662782.

It is not a de Polignac number, because 28726695 - 2⁴ = 28726679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 638371 = 28726695 / (2 + 8 + 7 + 2 + 6 + 6 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 28726695.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319141 + ... + 319230.

It is an arithmetic number, because the mean of its divisors is an integer number (4149418).

Almost surely, 2^28726695 is an apocalyptic number.

28726695 is a deficient number, since it is larger than the sum of its proper divisors (21066321).

28726695 is a wasteful number, since it uses less digits than its factorization.

28726695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638382 (or 638379 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 28726695 is about 5359.7290043434. The cubic root of 28726695 is about 306.2634857313.

The spelling of 28726695 in words is "twenty-eight million, seven hundred twenty-six thousand, six hundred ninety-five".