674544749 has 2 divisors, whose sum is σ = 674544750. Its totient is φ = 674544748.

The previous prime is 674544733. The next prime is 674544797. The reversal of 674544749 is 947445476.

674544749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 584769124 + 89775625 = 24182^2 + 9475^2 .

It is a cyclic number.

It is not a de Polignac number, because 674544749 - 2⁴ = 674544733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674544697 and 674544706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674544719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337272374 + 337272375.

It is an arithmetic number, because the mean of its divisors is an integer number (337272375).

Almost surely, 2^674544749 is an apocalyptic number.

It is an amenable number.

674544749 is a deficient number, since it is larger than the sum of its proper divisors (1).

674544749 is an equidigital number, since it uses as much as digits as its factorization.

674544749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 50.

The square root of 674544749 is about 25971.9993261974. Note that the first 3 decimals coincide. The cubic root of 674544749 is about 877.0080679265.

The spelling of 674544749 in words is "six hundred seventy-four million, five hundred forty-four thousand, seven hundred forty-nine".