28817413 has 8 divisors (see below), whose sum is σ = 30883968. Its totient is φ = 26818704.

The previous prime is 28817401. The next prime is 28817417. The reversal of 28817413 is 31471882.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28817413 - 2⁵ = 28817381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28817417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16081 + ... + 17782.

It is an arithmetic number, because the mean of its divisors is an integer number (3860496).

Almost surely, 2^28817413 is an apocalyptic number.

28817413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28817413 is a deficient number, since it is larger than the sum of its proper divisors (2066555).

28817413 is a wasteful number, since it uses less digits than its factorization.

28817413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33923.

The product of its digits is 10752, while the sum is 34.

The square root of 28817413 is about 5368.1852613337. The cubic root of 28817413 is about 306.5855371137.

The spelling of 28817413 in words is "twenty-eight million, eight hundred seventeen thousand, four hundred thirteen".