734645 has 8 divisors (see below), whose sum is σ = 886200. Its totient is φ = 584640.

The previous prime is 734627. The next prime is 734647. The reversal of 734645 is 546437.

It can be written as a sum of positive squares in 4 ways, for example, as 5329 + 729316 = 73^2 + 854^2 .

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

It is not a de Polignac number, because 734645 - 2⁸ = 734389 is a prime.

It is a Curzon number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535 + ... + 1955.

It is an arithmetic number, because the mean of its divisors is an integer number (110775).

2⁷³⁴⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

734645 is a deficient number, since it is larger than the sum of its proper divisors (151555).

734645 is a wasteful number, since it uses less digits than its factorization.

734645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its digits is 10080, while the sum is 29.

The square root of 734645 is about 857.1143447639. The cubic root of 734645 is about 90.2317074775.

The spelling of 734645 in words is "seven hundred thirty-four thousand, six hundred forty-five".