743746 has 4 divisors (see below), whose sum is σ = 1115622. Its totient is φ = 371872.

The previous prime is 743731. The next prime is 743747. The reversal of 743746 is 647347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647347 = 199 ⋅3253.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 314721 = 655^2 + 561^2 .

It is a super-2 number, since 2×743746² = 1106316225032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (743747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185935 + ... + 185938.

2⁷⁴³⁷⁴⁶ is an apocalyptic number.

743746 is a deficient number, since it is larger than the sum of its proper divisors (371876).

743746 is a wasteful number, since it uses less digits than its factorization.

743746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371875.

The product of its digits is 14112, while the sum is 31.

The square root of 743746 is about 862.4070964458. The cubic root of 743746 is about 90.6027850424.

The spelling of 743746 in words is "seven hundred forty-three thousand, seven hundred forty-six".