743538 has 8 divisors (see below), whose sum is σ = 1487088. Its totient is φ = 247844.

The previous prime is 743507. The next prime is 743549. The reversal of 743538 is 835347.

743538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

743538 is an admirable number.

It is an unprimeable number.

743538 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, 61956 + ... + 61967.

It is an arithmetic number, because the mean of its divisors is an integer number (185886).

2⁷⁴³⁵³⁸ is an apocalyptic number.

743538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

743538 is a wasteful number, since it uses less digits than its factorization.

743538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123928.

The product of its digits is 10080, while the sum is 30.

The square root of 743538 is about 862.2864953135. The cubic root of 743538 is about 90.5943381011.

Subtracting 743538 from its reverse (835347), we obtain a square (91809 = 303²).

The spelling of 743538 in words is "seven hundred forty-three thousand, five hundred thirty-eight".