83374639 has 2 divisors, whose sum is σ = 83374640. Its totient is φ = 83374638.

The previous prime is 83374637. The next prime is 83374651. The reversal of 83374639 is 93647338.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83374639 - 2¹ = 83374637 is a prime.

Together with 83374637, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 83374595 and 83374604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83374631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41687319 + 41687320.

It is an arithmetic number, because the mean of its divisors is an integer number (41687320).

Almost surely, 2^83374639 is an apocalyptic number.

83374639 is a deficient number, since it is larger than the sum of its proper divisors (1).

83374639 is an equidigital number, since it uses as much as digits as its factorization.

83374639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 43.

The square root of 83374639 is about 9130.9714160105. The cubic root of 83374639 is about 436.8623880947.

The spelling of 83374639 in words is "eighty-three million, three hundred seventy-four thousand, six hundred thirty-nine".