28474313 has 8 divisors (see below), whose sum is σ = 32707200. Its totient is φ = 24282720.

The previous prime is 28474309. The next prime is 28474319. The reversal of 28474313 is 31347482.

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

It is not a de Polignac number, because 28474313 - 2² = 28474309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28474313.

It is not an unprimeable number, because it can be changed into a prime (28474319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8828 + ... + 11613.

It is an arithmetic number, because the mean of its divisors is an integer number (4088400).

Almost surely, 2^28474313 is an apocalyptic number.

It is an amenable number.

28474313 is a deficient number, since it is larger than the sum of its proper divisors (4232887).

28474313 is a wasteful number, since it uses less digits than its factorization.

28474313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20647.

The product of its digits is 16128, while the sum is 32.

The square root of 28474313 is about 5336.1327757094. The cubic root of 28474313 is about 305.3639407236.

The spelling of 28474313 in words is "twenty-eight million, four hundred seventy-four thousand, three hundred thirteen".