28622726 has 8 divisors (see below), whose sum is σ = 46837224. Its totient is φ = 13010320.

The previous prime is 28622723. The next prime is 28622731. The reversal of 28622726 is 62722682.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28622723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650495 + ... + 650538.

It is an arithmetic number, because the mean of its divisors is an integer number (5854653).

Almost surely, 2^28622726 is an apocalyptic number.

28622726 is a deficient number, since it is larger than the sum of its proper divisors (18214498).

28622726 is a wasteful number, since it uses less digits than its factorization.

28622726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301046.

The product of its digits is 32256, while the sum is 35.

The square root of 28622726 is about 5350.0211214536. The cubic root of 28622726 is about 305.8935580345.

The spelling of 28622726 in words is "twenty-eight million, six hundred twenty-two thousand, seven hundred twenty-six".