28470339 has 8 divisors (see below), whose sum is σ = 42178320. Its totient is φ = 18980208.

The previous prime is 28470331. The next prime is 28470349. The reversal of 28470339 is 93307482.

It is not a de Polignac number, because 28470339 - 2³ = 28470331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28470331) 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, 527202 + ... + 527255.

It is an arithmetic number, because the mean of its divisors is an integer number (5272290).

Almost surely, 2^28470339 is an apocalyptic number.

28470339 is a deficient number, since it is larger than the sum of its proper divisors (13707981).

28470339 is a wasteful number, since it uses less digits than its factorization.

28470339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054466 (or 1054460 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 28470339 is about 5335.7603956700. The cubic root of 28470339 is about 305.3497340857.

The spelling of 28470339 in words is "twenty-eight million, four hundred seventy thousand, three hundred thirty-nine".