28670411 has 16 divisors (see below), whose sum is σ = 37628160. Its totient is φ = 21163680.

The previous prime is 28670399. The next prime is 28670413. The reversal of 28670411 is 11407682.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28670411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28670413) 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, 8336 + ... + 11261.

It is an arithmetic number, because the mean of its divisors is an integer number (2351760).

Almost surely, 2^28670411 is an apocalyptic number.

28670411 is a deficient number, since it is larger than the sum of its proper divisors (8957749).

28670411 is a wasteful number, since it uses less digits than its factorization.

28670411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19634.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 28670411 is about 5354.4757913357. The cubic root of 28670411 is about 306.0633350326.

The spelling of 28670411 in words is "twenty-eight million, six hundred seventy thousand, four hundred eleven".