28794313 has 4 divisors (see below), whose sum is σ = 28874880. Its totient is φ = 28713748.

The previous prime is 28794299. The next prime is 28794331. The reversal of 28794313 is 31349782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28794313 - 2⁵ = 28794281 is a prime.

It is a super-2 number, since 2×28794313² = 1658224922283938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28794383) 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, 39745 + ... + 40462.

It is an arithmetic number, because the mean of its divisors is an integer number (7218720).

Almost surely, 2^28794313 is an apocalyptic number.

It is an amenable number.

28794313 is a deficient number, since it is larger than the sum of its proper divisors (80567).

28794313 is an equidigital number, since it uses as much as digits as its factorization.

28794313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80566.

The product of its digits is 36288, while the sum is 37.

The square root of 28794313 is about 5366.0332648988. The cubic root of 28794313 is about 306.5035956953.

The spelling of 28794313 in words is "twenty-eight million, seven hundred ninety-four thousand, three hundred thirteen".