674224637 has 2 divisors, whose sum is σ = 674224638. Its totient is φ = 674224636.

The previous prime is 674224597. The next prime is 674224657. The reversal of 674224637 is 736422476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 561737401 + 112487236 = 23701^2 + 10606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674224637 is a prime.

It is a super-2 number, since 2×674224637² = 909157722275563538, which contains 22 as substring.

It is equal to p_34986191 and since 674224637 and 34986191 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 674224594 and 674224603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674224657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337112318 + 337112319.

It is an arithmetic number, because the mean of its divisors is an integer number (337112319).

Almost surely, 2^674224637 is an apocalyptic number.

It is an amenable number.

674224637 is a deficient number, since it is larger than the sum of its proper divisors (1).

674224637 is an equidigital number, since it uses as much as digits as its factorization.

674224637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 41.

The square root of 674224637 is about 25965.8359580430. The cubic root of 674224637 is about 876.8693149734.

The spelling of 674224637 in words is "six hundred seventy-four million, two hundred twenty-four thousand, six hundred thirty-seven".