28690753 has 16 divisors (see below), whose sum is σ = 35666176. Its totient is φ = 22472640.

The previous prime is 28690751. The next prime is 28690759. The reversal of 28690753 is 35709682.

It is a cyclic number.

It is not a de Polignac number, because 28690753 - 2¹ = 28690751 is a prime.

It is a super-3 number, since 3×28690753³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28690751) 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, 7843 + ... + 10903.

It is an arithmetic number, because the mean of its divisors is an integer number (2229136).

Almost surely, 2^28690753 is an apocalyptic number.

It is an amenable number.

28690753 is a deficient number, since it is larger than the sum of its proper divisors (6975423).

28690753 is a wasteful number, since it uses less digits than its factorization.

28690753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 28690753 is about 5356.3749868731. The cubic root of 28690753 is about 306.1357031207.

The spelling of 28690753 in words is "twenty-eight million, six hundred ninety thousand, seven hundred fifty-three".