83281403 has 2 divisors, whose sum is σ = 83281404. Its totient is φ = 83281402.

The previous prime is 83281379. The next prime is 83281421. The reversal of 83281403 is 30418238.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83281403 - 2¹² = 83277307 is a prime.

It is not a weakly prime, because it can be changed into another prime (83281463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41640701 + 41640702.

It is an arithmetic number, because the mean of its divisors is an integer number (41640702).

Almost surely, 2^83281403 is an apocalyptic number.

83281403 is a deficient number, since it is larger than the sum of its proper divisors (1).

83281403 is an equidigital number, since it uses as much as digits as its factorization.

83281403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83281403 is about 9125.8645069933. The cubic root of 83281403 is about 436.6994828655.

The spelling of 83281403 in words is "eighty-three million, two hundred eighty-one thousand, four hundred three".