743684 has 12 divisors (see below), whose sum is σ = 1316700. Its totient is φ = 367488.

The previous prime is 743671. The next prime is 743689. The reversal of 743684 is 486347.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 409600 + 334084 = 640^2 + 578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 743684.

It is not an unprimeable number, because it can be changed into a prime (743689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689 + ... + 1400.

It is an arithmetic number, because the mean of its divisors is an integer number (109725).

2⁷⁴³⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

743684 is a deficient number, since it is larger than the sum of its proper divisors (573016).

743684 is a wasteful number, since it uses less digits than its factorization.

743684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182 (or 2180 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 743684 is about 862.3711497957. The cubic root of 743684 is about 90.6002673689.

The spelling of 743684 in words is "seven hundred forty-three thousand, six hundred eighty-four".