283398013 has 4 divisors (see below), whose sum is σ = 286319740. Its totient is φ = 280476288.

The previous prime is 283397999. The next prime is 283398029. The reversal of 283398013 is 310893382.

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 39476089 + 243921924 = 6283^2 + 15618^2 .

It is a cyclic number.

It is not a de Polignac number, because 283398013 - 2⁹ = 283397501 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 (283398083) 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, 1460718 + ... + 1460911.

It is an arithmetic number, because the mean of its divisors is an integer number (71579935).

Almost surely, 2^283398013 is an apocalyptic number.

It is an amenable number.

283398013 is a deficient number, since it is larger than the sum of its proper divisors (2921727).

283398013 is an equidigital number, since it uses as much as digits as its factorization.

283398013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921726.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 283398013 is about 16834.4293933593. The cubic root of 283398013 is about 656.8490865759.

The spelling of 283398013 in words is "two hundred eighty-three million, three hundred ninety-eight thousand, thirteen".