28943702 has 4 divisors (see below), whose sum is σ = 43415556. Its totient is φ = 14471850.

The previous prime is 28943701. The next prime is 28943749. The reversal of 28943702 is 20734982.

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 (28943701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7235924 + ... + 7235927.

It is an arithmetic number, because the mean of its divisors is an integer number (10853889).

Almost surely, 2^28943702 is an apocalyptic number.

28943702 is a deficient number, since it is larger than the sum of its proper divisors (14471854).

28943702 is a wasteful number, since it uses less digits than its factorization.

28943702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14471853.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 28943702 is about 5379.9351297204. The cubic root of 28943702 is about 307.0327430974.

The spelling of 28943702 in words is "twenty-eight million, nine hundred forty-three thousand, seven hundred two".