28646373 has 16 divisors (see below), whose sum is σ = 43734656. Its totient is φ = 16338240.

The previous prime is 28646369. The next prime is 28646381. The reversal of 28646373 is 37364682.

It is not a de Polignac number, because 28646373 - 2² = 28646369 is a prime.

It is a super-2 number, since 2×28646373² = 1641229372110258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28646333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14463 + ... + 16323.

It is an arithmetic number, because the mean of its divisors is an integer number (2733416).

Almost surely, 2^28646373 is an apocalyptic number.

It is an amenable number.

28646373 is a deficient number, since it is larger than the sum of its proper divisors (15088283).

28646373 is a wasteful number, since it uses less digits than its factorization.

28646373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604.

The product of its digits is 145152, while the sum is 39.

The square root of 28646373 is about 5352.2306564646. The cubic root of 28646373 is about 305.9777740275.

The spelling of 28646373 in words is "twenty-eight million, six hundred forty-six thousand, three hundred seventy-three".