28349774 has 8 divisors (see below), whose sum is σ = 42549408. Its totient is φ = 14166640.

The previous prime is 28349759. The next prime is 28349813. The reversal of 28349774 is 47794382.

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

It is a Curzon number.

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, 1979 + ... + 7785.

It is an arithmetic number, because the mean of its divisors is an integer number (5318676).

Almost surely, 2^28349774 is an apocalyptic number.

28349774 is a deficient number, since it is larger than the sum of its proper divisors (14199634).

28349774 is a wasteful number, since it uses less digits than its factorization.

28349774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8250.

The product of its digits is 338688, while the sum is 44.

The square root of 28349774 is about 5324.4505819850. The cubic root of 28349774 is about 304.9180967934.

The spelling of 28349774 in words is "twenty-eight million, three hundred forty-nine thousand, seven hundred seventy-four".