28714313 has 4 divisors (see below), whose sum is σ = 28732548. Its totient is φ = 28696080.

The previous prime is 28714303. The next prime is 28714333. The reversal of 28714313 is 31341782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 284089 + 28430224 = 533^2 + 5332^2 .

It is a cyclic number.

It is not a de Polignac number, because 28714313 - 2⁶ = 28714249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28714303) 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, 6506 + ... + 9987.

It is an arithmetic number, because the mean of its divisors is an integer number (7183137).

Almost surely, 2^28714313 is an apocalyptic number.

It is an amenable number.

28714313 is a deficient number, since it is larger than the sum of its proper divisors (18235).

28714313 is a wasteful number, since it uses less digits than its factorization.

28714313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18234.

The product of its digits is 4032, while the sum is 29.

The square root of 28714313 is about 5358.5737841332. The cubic root of 28714313 is about 306.2194767302.

The spelling of 28714313 in words is "twenty-eight million, seven hundred fourteen thousand, three hundred thirteen".