734644 has 6 divisors (see below), whose sum is σ = 1285634. Its totient is φ = 367320.

The previous prime is 734627. The next prime is 734647. The reversal of 734644 is 446437.

It can be written as a sum of positive squares in only one way, i.e., 702244 + 32400 = 838^2 + 180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91827 + ... + 91834.

2⁷³⁴⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

734644 is a deficient number, since it is larger than the sum of its proper divisors (550990).

734644 is a wasteful number, since it uses less digits than its factorization.

734644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183665 (or 183663 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 734644 is about 857.1137614109. The cubic root of 734644 is about 90.2316665363.

It can be divided in two parts, 734 and 644, that added together give a triangular number (1378 = T₅₂).

The spelling of 734644 in words is "seven hundred thirty-four thousand, six hundred forty-four".