28758104 has 8 divisors (see below), whose sum is σ = 53921460. Its totient is φ = 14379048.

The previous prime is 28758091. The next prime is 28758109. The reversal of 28758104 is 40185782.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1797374 + ... + 1797389.

Almost surely, 2^28758104 is an apocalyptic number.

It is an amenable number.

28758104 is a deficient number, since it is larger than the sum of its proper divisors (25163356).

28758104 is a wasteful number, since it uses less digits than its factorization.

28758104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594769 (or 3594765 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 28758104 is about 5362.6582960319. The cubic root of 28758104 is about 306.3750651765.

The spelling of 28758104 in words is "twenty-eight million, seven hundred fifty-eight thousand, one hundred four".