83666951 has 2 divisors, whose sum is σ = 83666952. Its totient is φ = 83666950.

The previous prime is 83666941. The next prime is 83666959. The reversal of 83666951 is 15966638.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83666951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83666959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41833475 + 41833476.

It is an arithmetic number, because the mean of its divisors is an integer number (41833476).

Almost surely, 2^83666951 is an apocalyptic number.

83666951 is a deficient number, since it is larger than the sum of its proper divisors (1).

83666951 is an equidigital number, since it uses as much as digits as its factorization.

83666951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 83666951 is about 9146.9640318523. The cubic root of 83666951 is about 437.3723400049.

The spelling of 83666951 in words is "eighty-three million, six hundred sixty-six thousand, nine hundred fifty-one".