28269902 has 4 divisors (see below), whose sum is σ = 42404856. Its totient is φ = 14134950.

The previous prime is 28269881. The next prime is 28269911. The reversal of 28269902 is 20996282.

It is a semiprime because it is the product of two primes.

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, 7067474 + ... + 7067477.

It is an arithmetic number, because the mean of its divisors is an integer number (10601214).

Almost surely, 2^28269902 is an apocalyptic number.

28269902 is a deficient number, since it is larger than the sum of its proper divisors (14134954).

28269902 is a wasteful number, since it uses less digits than its factorization.

28269902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134953.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 28269902 is about 5316.9447994125. The cubic root of 28269902 is about 304.6314710404.

The spelling of 28269902 in words is "twenty-eight million, two hundred sixty-nine thousand, nine hundred two".