28625277 has 8 divisors (see below), whose sum is σ = 38211840. Its totient is φ = 19061120.

The previous prime is 28625251. The next prime is 28625279. The reversal of 28625277 is 77252682.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28625277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28625279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349 + ... + 7922.

It is an arithmetic number, because the mean of its divisors is an integer number (4776480).

Almost surely, 2^28625277 is an apocalyptic number.

It is an amenable number.

28625277 is a deficient number, since it is larger than the sum of its proper divisors (9586563).

28625277 is a wasteful number, since it uses less digits than its factorization.

28625277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11203.

The product of its digits is 94080, while the sum is 39.

The square root of 28625277 is about 5350.2595264155. The cubic root of 28625277 is about 305.9026453507.

The spelling of 28625277 in words is "twenty-eight million, six hundred twenty-five thousand, two hundred seventy-seven".