674406739 has 2 divisors, whose sum is σ = 674406740. Its totient is φ = 674406738.

The previous prime is 674406727. The next prime is 674406787. The reversal of 674406739 is 937604476.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674406739 - 2²¹ = 672309587 is a prime.

It is a super-2 number, since 2×674406739² = 909648899217228242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (674406709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337203369 + 337203370.

It is an arithmetic number, because the mean of its divisors is an integer number (337203370).

Almost surely, 2^674406739 is an apocalyptic number.

674406739 is a deficient number, since it is larger than the sum of its proper divisors (1).

674406739 is an equidigital number, since it uses as much as digits as its factorization.

674406739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 46.

The square root of 674406739 is about 25969.3422904778. The cubic root of 674406739 is about 876.9482527010.

The spelling of 674406739 in words is "six hundred seventy-four million, four hundred six thousand, seven hundred thirty-nine".