743988 has 48 divisors (see below), whose sum is σ = 2104704. Its totient is φ = 199680.

The previous prime is 743987. The next prime is 743989. The reversal of 743988 is 889347.

743988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (743987) and next prime (743989).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 743988.

It is not an unprimeable number, because it can be changed into a prime (743987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (43848).

2⁷⁴³⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 743988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052352).

743988 is an abundant number, since it is smaller than the sum of its proper divisors (1360716).

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

743988 is a wasteful number, since it uses less digits than its factorization.

743988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 550 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 743988 is about 862.5473900024. The cubic root of 743988 is about 90.6126107519.

The spelling of 743988 in words is "seven hundred forty-three thousand, nine hundred eighty-eight".