28269964 has 6 divisors (see below), whose sum is σ = 49472444. Its totient is φ = 14134980.

The previous prime is 28269953. The next prime is 28269977. The reversal of 28269964 is 46996282.

It is a super-2 number, since 2×28269964² = 1598381729122592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3533742 + ... + 3533749.

Almost surely, 2^28269964 is an apocalyptic number.

It is an amenable number.

28269964 is a deficient number, since it is larger than the sum of its proper divisors (21202480).

28269964 is a wasteful number, since it uses less digits than its factorization.

28269964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7067495 (or 7067493 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 28269964 is about 5316.9506298253. The cubic root of 28269964 is about 304.6316937406.

The spelling of 28269964 in words is "twenty-eight million, two hundred sixty-nine thousand, nine hundred sixty-four".