674707261 has 2 divisors, whose sum is σ = 674707262. Its totient is φ = 674707260.

The previous prime is 674707223. The next prime is 674707283. The reversal of 674707261 is 162707476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595604025 + 79103236 = 24405^2 + 8894^2 .

It is a cyclic number.

It is not a de Polignac number, because 674707261 - 2⁹ = 674706749 is a prime.

It is a super-2 number, since 2×674707261² = 910459776092244242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674707211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337353630 + 337353631.

It is an arithmetic number, because the mean of its divisors is an integer number (337353631).

Almost surely, 2^674707261 is an apocalyptic number.

It is an amenable number.

674707261 is a deficient number, since it is larger than the sum of its proper divisors (1).

674707261 is an equidigital number, since it uses as much as digits as its factorization.

674707261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 674707261 is about 25975.1277378957. The cubic root of 674707261 is about 877.0784921601.

The spelling of 674707261 in words is "six hundred seventy-four million, seven hundred seven thousand, two hundred sixty-one".