674956619 has 2 divisors, whose sum is σ = 674956620. Its totient is φ = 674956618.

The previous prime is 674956609. The next prime is 674956621. The reversal of 674956619 is 916659476.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674956619 is a prime.

It is a super-2 number, since 2×674956619² = 911132875063822322, which contains 22 as substring.

Together with 674956621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (674956609) 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, 337478309 + 337478310.

It is an arithmetic number, because the mean of its divisors is an integer number (337478310).

Almost surely, 2^674956619 is an apocalyptic number.

674956619 is a deficient number, since it is larger than the sum of its proper divisors (1).

674956619 is an equidigital number, since it uses as much as digits as its factorization.

674956619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The square root of 674956619 is about 25979.9272323846. The cubic root of 674956619 is about 877.1865289407.

The spelling of 674956619 in words is "six hundred seventy-four million, nine hundred fifty-six thousand, six hundred nineteen".