• 746 can be written using four 4's:

746 has 4 divisors (see below), whose sum is σ = 1122. Its totient is φ = 372.

The previous prime is 743. The next prime is 751. The reversal of 746 is 647.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 625 + 121 = 25^2 + 11^2 .

It is a Curzon number.

It is a plaindrome in base 13 and base 15.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185 + ... + 188.

746 is a deficient number, since it is larger than the sum of its proper divisors (376).

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

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

The sum of its prime factors is 375.

The product of its digits is 168, while the sum is 17.

The square root of 746 is about 27.3130005675. The cubic root of 746 is about 9.0694219807.

Subtracting from 746 its sum of digits (17), we obtain a 6-th power (729 = 3^{6}).

Subtracting from 746 its reverse (647), we obtain a palindrome (99).

It can be divided in two parts, 74 and 6, that multiplied together give a palindrome (444).

The spelling of 746 in words is "seven hundred forty-six", and thus it is an aban number.

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