83623679 has 2 divisors, whose sum is σ = 83623680. Its totient is φ = 83623678.

The previous prime is 83623667. The next prime is 83623681. The reversal of 83623679 is 97632638.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83623679 is a prime.

Together with 83623681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83623279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41811839 + 41811840.

It is an arithmetic number, because the mean of its divisors is an integer number (41811840).

Almost surely, 2^83623679 is an apocalyptic number.

83623679 is a deficient number, since it is larger than the sum of its proper divisors (1).

83623679 is an equidigital number, since it uses as much as digits as its factorization.

83623679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 83623679 is about 9144.5983509392. The cubic root of 83623679 is about 437.2969249638.

The spelling of 83623679 in words is "eighty-three million, six hundred twenty-three thousand, six hundred seventy-nine".