28700902 has 16 divisors (see below), whose sum is σ = 44643312. Its totient is φ = 13828480.

The previous prime is 28700869. The next prime is 28700911. The reversal of 28700902 is 20900782.

It is a super-2 number, since 2×28700902² = 1647483551227208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4698 + ... + 8914.

It is an arithmetic number, because the mean of its divisors is an integer number (2790207).

Almost surely, 2^28700902 is an apocalyptic number.

28700902 is a deficient number, since it is larger than the sum of its proper divisors (15942410).

28700902 is a wasteful number, since it uses less digits than its factorization.

28700902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 28700902 is about 5357.3222789002. The cubic root of 28700902 is about 306.1717961082.

The spelling of 28700902 in words is "twenty-eight million, seven hundred thousand, nine hundred two".