674089679 has 2 divisors, whose sum is σ = 674089680. Its totient is φ = 674089678.

The previous prime is 674089673. The next prime is 674089687. The reversal of 674089679 is 976980476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674089679 - 2¹² = 674085583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674089673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337044839 + 337044840.

It is an arithmetic number, because the mean of its divisors is an integer number (337044840).

Almost surely, 2^674089679 is an apocalyptic number.

674089679 is a deficient number, since it is larger than the sum of its proper divisors (1).

674089679 is an equidigital number, since it uses as much as digits as its factorization.

674089679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The square root of 674089679 is about 25963.2370670531. The cubic root of 674089679 is about 876.8108040957.

The spelling of 674089679 in words is "six hundred seventy-four million, eighty-nine thousand, six hundred seventy-nine".