28612774 has 8 divisors (see below), whose sum is σ = 42955488. Its totient is φ = 14294280.

The previous prime is 28612757. The next prime is 28612789. The reversal of 28612774 is 47721682.

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

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, 2737 + ... + 8044.

It is an arithmetic number, because the mean of its divisors is an integer number (5369436).

Almost surely, 2^28612774 is an apocalyptic number.

28612774 is a deficient number, since it is larger than the sum of its proper divisors (14342714).

28612774 is a wasteful number, since it uses less digits than its factorization.

28612774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12110.

The product of its digits is 37632, while the sum is 37.

The square root of 28612774 is about 5349.0909508065. The cubic root of 28612774 is about 305.8581012955.

The spelling of 28612774 in words is "twenty-eight million, six hundred twelve thousand, seven hundred seventy-four".