83481427 has 2 divisors, whose sum is σ = 83481428. Its totient is φ = 83481426.

The previous prime is 83481403. The next prime is 83481439. The reversal of 83481427 is 72418438.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83481427 is a prime.

It is not a weakly prime, because it can be changed into another prime (83481487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41740713 + 41740714.

It is an arithmetic number, because the mean of its divisors is an integer number (41740714).

Almost surely, 2^83481427 is an apocalyptic number.

83481427 is a deficient number, since it is larger than the sum of its proper divisors (1).

83481427 is an equidigital number, since it uses as much as digits as its factorization.

83481427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 37.

The square root of 83481427 is about 9136.8171153854. The cubic root of 83481427 is about 437.0488227145.

The spelling of 83481427 in words is "eighty-three million, four hundred eighty-one thousand, four hundred twenty-seven".