83851379 has 2 divisors, whose sum is σ = 83851380. Its totient is φ = 83851378.

The previous prime is 83851367. The next prime is 83851381. The reversal of 83851379 is 97315838.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83851379 - 2⁴ = 83851363 is a prime.

Together with 83851381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83851309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41925689 + 41925690.

It is an arithmetic number, because the mean of its divisors is an integer number (41925690).

Almost surely, 2^83851379 is an apocalyptic number.

83851379 is a deficient number, since it is larger than the sum of its proper divisors (1).

83851379 is an equidigital number, since it uses as much as digits as its factorization.

83851379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 83851379 is about 9157.0398601295. The cubic root of 83851379 is about 437.6934724159.

The spelling of 83851379 in words is "eighty-three million, eight hundred fifty-one thousand, three hundred seventy-nine".