83274643 has 2 divisors, whose sum is σ = 83274644. Its totient is φ = 83274642.

The previous prime is 83274641. The next prime is 83274757. The reversal of 83274643 is 34647238.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83274643 - 2¹ = 83274641 is a prime.

Together with 83274641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (83274641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41637321 + 41637322.

It is an arithmetic number, because the mean of its divisors is an integer number (41637322).

Almost surely, 2^83274643 is an apocalyptic number.

83274643 is a deficient number, since it is larger than the sum of its proper divisors (1).

83274643 is an equidigital number, since it uses as much as digits as its factorization.

83274643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 37.

The square root of 83274643 is about 9125.4941236078. The cubic root of 83274643 is about 436.6876668286.

The spelling of 83274643 in words is "eighty-three million, two hundred seventy-four thousand, six hundred forty-three".