28878034 has 8 divisors (see below), whose sum is σ = 43442928. Its totient is φ = 14397060.

The previous prime is 28877993. The next prime is 28878049. The reversal of 28878034 is 43087882.

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

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, 20112 + ... + 21499.

It is an arithmetic number, because the mean of its divisors is an integer number (5430366).

Almost surely, 2^28878034 is an apocalyptic number.

28878034 is a deficient number, since it is larger than the sum of its proper divisors (14564894).

28878034 is a wasteful number, since it uses less digits than its factorization.

28878034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41960.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 28878034 is about 5373.8286165452. The cubic root of 28878034 is about 306.8003667694.

The spelling of 28878034 in words is "twenty-eight million, eight hundred seventy-eight thousand, thirty-four".