28760838 has 32 divisors (see below), whose sum is σ = 61137504. Its totient is φ = 8988672.

The previous prime is 28760827. The next prime is 28760843. The reversal of 28760838 is 83806782.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28760838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46306 + ... + 46922.

It is an arithmetic number, because the mean of its divisors is an integer number (1910547).

Almost surely, 2^28760838 is an apocalyptic number.

28760838 is an abundant number, since it is smaller than the sum of its proper divisors (32376666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28760838 is a wasteful number, since it uses less digits than its factorization.

28760838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 28760838 is about 5362.9132008639. The cubic root of 28760838 is about 306.3847737777.

The spelling of 28760838 in words is "twenty-eight million, seven hundred sixty thousand, eight hundred thirty-eight".