83313389 has 2 divisors, whose sum is σ = 83313390. Its totient is φ = 83313388.

The previous prime is 83313359. The next prime is 83313407. The reversal of 83313389 is 98331338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 35010889 = 6950^2 + 5917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83313389 is a prime.

It is a super-2 number, since 2×83313389² = 13882241573330642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83313319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41656694 + 41656695.

It is an arithmetic number, because the mean of its divisors is an integer number (41656695).

Almost surely, 2^83313389 is an apocalyptic number.

It is an amenable number.

83313389 is a deficient number, since it is larger than the sum of its proper divisors (1).

83313389 is an equidigital number, since it uses as much as digits as its factorization.

83313389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 83313389 is about 9127.6168302575. The cubic root of 83313389 is about 436.7553836279.

The spelling of 83313389 in words is "eighty-three million, three hundred thirteen thousand, three hundred eighty-nine".