28866874 has 8 divisors (see below), whose sum is σ = 44117460. Its totient is φ = 14161056.

The previous prime is 28866853. The next prime is 28866881. The reversal of 28866874 is 47866882.

It can be written as a sum of positive squares in 2 ways, for example, as 28547649 + 319225 = 5343^2 + 565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136059 + ... + 136270.

Almost surely, 2^28866874 is an apocalyptic number.

28866874 is a deficient number, since it is larger than the sum of its proper divisors (15250586).

28866874 is a wasteful number, since it uses less digits than its factorization.

28866874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272384.

The product of its digits is 1032192, while the sum is 49.

The square root of 28866874 is about 5372.7901503781. The cubic root of 28866874 is about 306.7608403801.

The spelling of 28866874 in words is "twenty-eight million, eight hundred sixty-six thousand, eight hundred seventy-four".