743720 has 16 divisors (see below), whose sum is σ = 1673460. Its totient is φ = 297472.

The previous prime is 743711. The next prime is 743731. The reversal of 743720 is 27347.

It can be written as a sum of positive squares in 2 ways, for example, as 743044 + 676 = 862^2 + 26^2 .

It is an unprimeable number.

743720 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9257 + ... + 9336.

2⁷⁴³⁷²⁰ is an apocalyptic number.

It is an amenable number.

743720 is an abundant number, since it is smaller than the sum of its proper divisors (929740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

743720 is a wasteful number, since it uses less digits than its factorization.

743720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18604 (or 18600 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 743720 is about 862.3920222266. The cubic root of 743720 is about 90.6017292609.

The spelling of 743720 in words is "seven hundred forty-three thousand, seven hundred twenty", and thus it is an iban number.