28697302 has 8 divisors (see below), whose sum is σ = 43441200. Its totient is φ = 14216904.

The previous prime is 28697281. The next prime is 28697321. The reversal of 28697302 is 20379682.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 65602 + ... + 66037.

It is an arithmetic number, because the mean of its divisors is an integer number (5430150).

Almost surely, 2^28697302 is an apocalyptic number.

28697302 is a deficient number, since it is larger than the sum of its proper divisors (14743898).

28697302 is a wasteful number, since it uses less digits than its factorization.

28697302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131750.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 28697302 is about 5356.9862796166. The cubic root of 28697302 is about 306.1589943671.

The spelling of 28697302 in words is "twenty-eight million, six hundred ninety-seven thousand, three hundred two".