28627915 has 8 divisors (see below), whose sum is σ = 36374400. Its totient is φ = 21555072.

The previous prime is 28627913. The next prime is 28627933. The reversal of 28627915 is 51972682.

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

It is a cyclic number.

It is not a de Polignac number, because 28627915 - 2¹ = 28627913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28627913) 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, 168315 + ... + 168484.

It is an arithmetic number, because the mean of its divisors is an integer number (4546800).

Almost surely, 2^28627915 is an apocalyptic number.

28627915 is a deficient number, since it is larger than the sum of its proper divisors (7746485).

28627915 is a wasteful number, since it uses less digits than its factorization.

28627915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336821.

The product of its digits is 60480, while the sum is 40.

The square root of 28627915 is about 5350.5060508329. The cubic root of 28627915 is about 305.9120420154.

The spelling of 28627915 in words is "twenty-eight million, six hundred twenty-seven thousand, nine hundred fifteen".