28692130 has 8 divisors (see below), whose sum is σ = 51645852. Its totient is φ = 11476848.

The previous prime is 28692121. The next prime is 28692149. The reversal of 28692130 is 3129682.

It can be written as a sum of positive squares in 2 ways, for example, as 23415921 + 5276209 = 4839^2 + 2297^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28692092 and 28692101.

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, 1434597 + ... + 1434616.

Almost surely, 2^28692130 is an apocalyptic number.

28692130 is a deficient number, since it is larger than the sum of its proper divisors (22953722).

28692130 is a wasteful number, since it uses less digits than its factorization.

28692130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869220.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 28692130 is about 5356.5035237550. The cubic root of 28692130 is about 306.1406006582.

It can be divided in two parts, 286 and 92130, that added together give a square (92416 = 304²).

The spelling of 28692130 in words is "twenty-eight million, six hundred ninety-two thousand, one hundred thirty".