28670296 has 16 divisors (see below), whose sum is σ = 56919240. Its totient is φ = 13491840.

The previous prime is 28670287. The next prime is 28670303. The reversal of 28670296 is 69207682.

It is a congruent number.

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, 105270 + ... + 105541.

Almost surely, 2^28670296 is an apocalyptic number.

It is an amenable number.

28670296 is a deficient number, since it is larger than the sum of its proper divisors (28248944).

28670296 is a wasteful number, since it uses less digits than its factorization.

28670296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210834 (or 210830 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 28670296 is about 5354.4650526453. The cubic root of 28670296 is about 306.0629258148.

The spelling of 28670296 in words is "twenty-eight million, six hundred seventy thousand, two hundred ninety-six".