28670474 has 24 divisors (see below), whose sum is σ = 50809824. Its totient is φ = 11885400.

The previous prime is 28670459. The next prime is 28670479. The reversal of 28670474 is 47407682.

It is not an unprimeable number, because it can be changed into a prime (28670479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12389 + ... + 14519.

It is an arithmetic number, because the mean of its divisors is an integer number (2117076).

Almost surely, 2^28670474 is an apocalyptic number.

28670474 is a deficient number, since it is larger than the sum of its proper divisors (22139350).

28670474 is a wasteful number, since it uses less digits than its factorization.

28670474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 28670474 is about 5354.4816742613. The cubic root of 28670474 is about 306.0635592124.

The spelling of 28670474 in words is "twenty-eight million, six hundred seventy thousand, four hundred seventy-four".