28766294 has 4 divisors (see below), whose sum is σ = 43149444. Its totient is φ = 14383146.

The previous prime is 28766291. The next prime is 28766317. The reversal of 28766294 is 49266782.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28766291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7191572 + ... + 7191575.

It is an arithmetic number, because the mean of its divisors is an integer number (10787361).

Almost surely, 2^28766294 is an apocalyptic number.

28766294 is a deficient number, since it is larger than the sum of its proper divisors (14383150).

28766294 is a wasteful number, since it uses less digits than its factorization.

28766294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14383149.

The product of its digits is 290304, while the sum is 44.

The square root of 28766294 is about 5363.4218554949. The cubic root of 28766294 is about 306.4041465284.

The spelling of 28766294 in words is "twenty-eight million, seven hundred sixty-six thousand, two hundred ninety-four".