674427679 has 2 divisors, whose sum is σ = 674427680. Its totient is φ = 674427678.

The previous prime is 674427577. The next prime is 674427701. The reversal of 674427679 is 976724476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 674427679 - 2²³ = 666039071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674427779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337213839 + 337213840.

It is an arithmetic number, because the mean of its divisors is an integer number (337213840).

Almost surely, 2^674427679 is an apocalyptic number.

674427679 is a deficient number, since it is larger than the sum of its proper divisors (1).

674427679 is an equidigital number, since it uses as much as digits as its factorization.

674427679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 52.

The square root of 674427679 is about 25969.7454550483. The cubic root of 674427679 is about 876.9573288787.

The spelling of 674427679 in words is "six hundred seventy-four million, four hundred twenty-seven thousand, six hundred seventy-nine".