28743298 has 4 divisors (see below), whose sum is σ = 43114950. Its totient is φ = 14371648.

The previous prime is 28743289. The next prime is 28743313. The reversal of 28743298 is 89234782.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 27008809 + 1734489 = 5197^2 + 1317^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7185823 + ... + 7185826.

Almost surely, 2^28743298 is an apocalyptic number.

28743298 is a deficient number, since it is larger than the sum of its proper divisors (14371652).

28743298 is a wasteful number, since it uses less digits than its factorization.

28743298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14371651.

The product of its digits is 193536, while the sum is 43.

The square root of 28743298 is about 5361.2776462332. The cubic root of 28743298 is about 306.3224774733.

The spelling of 28743298 in words is "twenty-eight million, seven hundred forty-three thousand, two hundred ninety-eight".