28374687 has 12 divisors (see below), whose sum is σ = 44711784. Its totient is φ = 17196720.

The previous prime is 28374679. The next prime is 28374719. The reversal of 28374687 is 78647382.

It is a happy number.

It is not a de Polignac number, because 28374687 - 2³ = 28374679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143208 + ... + 143405.

It is an arithmetic number, because the mean of its divisors is an integer number (3725982).

Almost surely, 2^28374687 is an apocalyptic number.

28374687 is a deficient number, since it is larger than the sum of its proper divisors (16337097).

28374687 is a wasteful number, since it uses less digits than its factorization.

28374687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286630 (or 286627 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 28374687 is about 5326.7895584489. The cubic root of 28374687 is about 305.0073885158.

The spelling of 28374687 in words is "twenty-eight million, three hundred seventy-four thousand, six hundred eighty-seven".