83353979 has 2 divisors, whose sum is σ = 83353980. Its totient is φ = 83353978.

The previous prime is 83353973. The next prime is 83353981. The reversal of 83353979 is 97935338.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83353979 - 2¹² = 83349883 is a prime.

Together with 83353981, 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 (83353973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41676989 + 41676990.

It is an arithmetic number, because the mean of its divisors is an integer number (41676990).

Almost surely, 2^83353979 is an apocalyptic number.

83353979 is a deficient number, since it is larger than the sum of its proper divisors (1).

83353979 is an equidigital number, since it uses as much as digits as its factorization.

83353979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 47.

The square root of 83353979 is about 9129.8400314573. The cubic root of 83353979 is about 436.8263006919.

The spelling of 83353979 in words is "eighty-three million, three hundred fifty-three thousand, nine hundred seventy-nine".