28674225 has 36 divisors (see below), whose sum is σ = 53028352. Its totient is φ = 14796000.

The previous prime is 28674221. The next prime is 28674229. The reversal of 28674225 is 52247682.

It is an interprime number because it is at equal distance from previous prime (28674221) and next prime (28674229).

It is not a de Polignac number, because 28674225 - 2² = 28674221 is a prime.

It is a super-2 number, since 2×28674225² = 1644422358701250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28674225.

It is not an unprimeable number, because it can be changed into a prime (28674221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4920 + ... + 9030.

Almost surely, 2^28674225 is an apocalyptic number.

28674225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28674225 is a deficient number, since it is larger than the sum of its proper divisors (24354127).

28674225 is a wasteful number, since it uses less digits than its factorization.

28674225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158 (or 4150 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 28674225 is about 5354.8319301356. The cubic root of 28674225 is about 306.0769062112.

The spelling of 28674225 in words is "twenty-eight million, six hundred seventy-four thousand, two hundred twenty-five".