83134979 has 2 divisors, whose sum is σ = 83134980. Its totient is φ = 83134978.

The previous prime is 83134973. The next prime is 83134993. The reversal of 83134979 is 97943138.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83134979 - 2¹⁶ = 83069443 is a prime.

It is a super-2 number, since 2×83134979² = 13822849466660882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83134973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41567489 + 41567490.

It is an arithmetic number, because the mean of its divisors is an integer number (41567490).

Almost surely, 2^83134979 is an apocalyptic number.

83134979 is a deficient number, since it is larger than the sum of its proper divisors (1).

83134979 is an equidigital number, since it uses as much as digits as its factorization.

83134979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 83134979 is about 9117.8385048212. The cubic root of 83134979 is about 436.4434000983.

The spelling of 83134979 in words is "eighty-three million, one hundred thirty-four thousand, nine hundred seventy-nine".