28540683 has 6 divisors (see below), whose sum is σ = 41225444. Its totient is φ = 19027116.

The previous prime is 28540657. The next prime is 28540693. The reversal of 28540683 is 38604582.

It is not a de Polignac number, because 28540683 - 2⁸ = 28540427 is a prime.

It is a super-2 number, since 2×28540683² = 1629141172212978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28540643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1585585 + ... + 1585602.

Almost surely, 2^28540683 is an apocalyptic number.

28540683 is a deficient number, since it is larger than the sum of its proper divisors (12684761).

28540683 is a wasteful number, since it uses less digits than its factorization.

28540683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171193 (or 3171190 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28540683 is about 5342.3480792625. The cubic root of 28540683 is about 305.6010114535.

The spelling of 28540683 in words is "twenty-eight million, five hundred forty thousand, six hundred eighty-three".