83388313 has 2 divisors, whose sum is σ = 83388314. Its totient is φ = 83388312.

The previous prime is 83388307. The next prime is 83388323. The reversal of 83388313 is 31388338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70341769 + 13046544 = 8387^2 + 3612^2 .

It is a cyclic number.

It is not a de Polignac number, because 83388313 - 2¹⁷ = 83257241 is a prime.

It is a super-2 number, since 2×83388313² = 13907221489971938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83388323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41694156 + 41694157.

It is an arithmetic number, because the mean of its divisors is an integer number (41694157).

Almost surely, 2^83388313 is an apocalyptic number.

It is an amenable number.

83388313 is a deficient number, since it is larger than the sum of its proper divisors (1).

83388313 is an equidigital number, since it uses as much as digits as its factorization.

83388313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 83388313 is about 9131.7201555895. The cubic root of 83388313 is about 436.8862695764.

The spelling of 83388313 in words is "eighty-three million, three hundred eighty-eight thousand, three hundred thirteen".