28816726 has 4 divisors (see below), whose sum is σ = 43225092. Its totient is φ = 14408362.

The previous prime is 28816703. The next prime is 28816759. The reversal of 28816726 is 62761882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62761882 = 2 ⋅31380941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7204180 + ... + 7204183.

It is an arithmetic number, because the mean of its divisors is an integer number (10806273).

Almost surely, 2^28816726 is an apocalyptic number.

28816726 is a deficient number, since it is larger than the sum of its proper divisors (14408366).

28816726 is a wasteful number, since it uses less digits than its factorization.

28816726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14408365.

The product of its digits is 64512, while the sum is 40.

The square root of 28816726 is about 5368.1212728477. The cubic root of 28816726 is about 306.5831007866.

The spelling of 28816726 in words is "twenty-eight million, eight hundred sixteen thousand, seven hundred twenty-six".