83411971 has 2 divisors, whose sum is σ = 83411972. Its totient is φ = 83411970.

The previous prime is 83411969. The next prime is 83412029. The reversal of 83411971 is 17911438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83411971 - 2¹ = 83411969 is a prime.

It is a super-2 number, since 2×83411971² = 13915113812209682, which contains 22 as substring.

Together with 83411969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (83411941) 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, 41705985 + 41705986.

It is an arithmetic number, because the mean of its divisors is an integer number (41705986).

Almost surely, 2^83411971 is an apocalyptic number.

83411971 is a deficient number, since it is larger than the sum of its proper divisors (1).

83411971 is an equidigital number, since it uses as much as digits as its factorization.

83411971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 83411971 is about 9133.0154385066. The cubic root of 83411971 is about 436.9275818326.

The spelling of 83411971 in words is "eighty-three million, four hundred eleven thousand, nine hundred seventy-one".