28810396 has 6 divisors (see below), whose sum is σ = 50418200. Its totient is φ = 14405196.

The previous prime is 28810381. The next prime is 28810447. The reversal of 28810396 is 69301882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3601296 + ... + 3601303.

Almost surely, 2^28810396 is an apocalyptic number.

It is an amenable number.

28810396 is a deficient number, since it is larger than the sum of its proper divisors (21607804).

28810396 is a wasteful number, since it uses less digits than its factorization.

28810396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7202603 (or 7202601 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 28810396 is about 5367.5316487190. The cubic root of 28810396 is about 306.5606507097.

The spelling of 28810396 in words is "twenty-eight million, eight hundred ten thousand, three hundred ninety-six".