28279702 has 8 divisors (see below), whose sum is σ = 46275912. Its totient is φ = 12854400.

The previous prime is 28279679. The next prime is 28279717. The reversal of 28279702 is 20797282.

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, 642699 + ... + 642742.

It is an arithmetic number, because the mean of its divisors is an integer number (5784489).

Almost surely, 2^28279702 is an apocalyptic number.

28279702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28279702 is a deficient number, since it is larger than the sum of its proper divisors (17996210).

28279702 is a wasteful number, since it uses less digits than its factorization.

28279702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285454.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 28279702 is about 5317.8663014408. The cubic root of 28279702 is about 304.6666679967. Note that the first 5 decimals are identical.

The spelling of 28279702 in words is "twenty-eight million, two hundred seventy-nine thousand, seven hundred two".