28745854 has 8 divisors (see below), whose sum is σ = 43448328. Its totient is φ = 14263080.

The previous prime is 28745839. The next prime is 28745891. The reversal of 28745854 is 45854782.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28745854.

It is a congruent number.

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, 54597 + ... + 55120.

It is an arithmetic number, because the mean of its divisors is an integer number (5431041).

Almost surely, 2^28745854 is an apocalyptic number.

28745854 is a deficient number, since it is larger than the sum of its proper divisors (14702474).

28745854 is a wasteful number, since it uses less digits than its factorization.

28745854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109850.

The product of its digits is 358400, while the sum is 43.

The square root of 28745854 is about 5361.5160169489. The cubic root of 28745854 is about 306.3315571208.

The spelling of 28745854 in words is "twenty-eight million, seven hundred forty-five thousand, eight hundred fifty-four".