28694765 has 8 divisors (see below), whose sum is σ = 37564128. Its totient is φ = 20868880.

The previous prime is 28694749. The next prime is 28694789. The reversal of 28694765 is 56749682.

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

It is not a de Polignac number, because 28694765 - 2⁴ = 28694749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260807 + ... + 260916.

It is an arithmetic number, because the mean of its divisors is an integer number (4695516).

Almost surely, 2^28694765 is an apocalyptic number.

It is an amenable number.

28694765 is a deficient number, since it is larger than the sum of its proper divisors (8869363).

28694765 is a wasteful number, since it uses less digits than its factorization.

28694765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521739.

The product of its digits is 725760, while the sum is 47.

The square root of 28694765 is about 5356.7494807952. The cubic root of 28694765 is about 306.1499720525.

The spelling of 28694765 in words is "twenty-eight million, six hundred ninety-four thousand, seven hundred sixty-five".