28792838 has 4 divisors (see below), whose sum is σ = 43189260. Its totient is φ = 14396418.

The previous prime is 28792837. The next prime is 28792859. The reversal of 28792838 is 83829782.

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

It is a junction number, because it is equal to n+sod(n) for n = 28792792 and 28792801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28792837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7198208 + ... + 7198211.

It is an arithmetic number, because the mean of its divisors is an integer number (10797315).

Almost surely, 2^28792838 is an apocalyptic number.

28792838 is a deficient number, since it is larger than the sum of its proper divisors (14396422).

28792838 is a wasteful number, since it uses less digits than its factorization.

28792838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14396421.

The product of its digits is 387072, while the sum is 47.

The square root of 28792838 is about 5365.8958245572. The cubic root of 28792838 is about 306.4983620169.

The spelling of 28792838 in words is "twenty-eight million, seven hundred ninety-two thousand, eight hundred thirty-eight".