674467643 has 12 divisors (see below), whose sum is σ = 714412440. Its totient is φ = 634991616.

The previous prime is 674467637. The next prime is 674467649. The reversal of 674467643 is 346764476.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (674467637) and next prime (674467649).

It is not a de Polignac number, because 674467643 - 2⁶ = 674467579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674467649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 707255 + ... + 708207.

It is an arithmetic number, because the mean of its divisors is an integer number (59534370).

Almost surely, 2^674467643 is an apocalyptic number.

674467643 is a deficient number, since it is larger than the sum of its proper divisors (39944797).

674467643 is an equidigital number, since it uses as much as digits as its factorization.

674467643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1165 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 47.

The square root of 674467643 is about 25970.5148774529. The cubic root of 674467643 is about 876.9746502469.

The spelling of 674467643 in words is "six hundred seventy-four million, four hundred sixty-seven thousand, six hundred forty-three".