674217587 has 2 divisors, whose sum is σ = 674217588. Its totient is φ = 674217586.

The previous prime is 674217581. The next prime is 674217613. The reversal of 674217587 is 785712476.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674217587 - 2²⁰ = 673169011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (674217581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337108793 + 337108794.

It is an arithmetic number, because the mean of its divisors is an integer number (337108794).

Almost surely, 2^674217587 is an apocalyptic number.

674217587 is a deficient number, since it is larger than the sum of its proper divisors (1).

674217587 is an equidigital number, since it uses as much as digits as its factorization.

674217587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 47.

The square root of 674217587 is about 25965.7002023824. The cubic root of 674217587 is about 876.8662586477.

The spelling of 674217587 in words is "six hundred seventy-four million, two hundred seventeen thousand, five hundred eighty-seven".