734661 has 6 divisors (see below), whose sum is σ = 1061190. Its totient is φ = 489768.

The previous prime is 734659. The next prime is 734663. The reversal of 734661 is 166437.

It is an interprime number because it is at equal distance from previous prime (734659) and next prime (734663).

It can be written as a sum of positive squares in only one way, i.e., 690561 + 44100 = 831^2 + 210^2 .

It is not a de Polignac number, because 734661 - 2¹ = 734659 is a prime.

It is a Curzon 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 734661.

It is not an unprimeable number, because it can be changed into a prime (734663) 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 in 5 ways as a sum of consecutive naturals, for example, 40806 + ... + 40823.

It is an arithmetic number, because the mean of its divisors is an integer number (176865).

2⁷³⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

734661 is a deficient number, since it is larger than the sum of its proper divisors (326529).

734661 is a wasteful number, since it uses less digits than its factorization.

734661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81635 (or 81632 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 734661 is about 857.1236783569. The cubic root of 734661 is about 90.2323625317.

The spelling of 734661 in words is "seven hundred thirty-four thousand, six hundred sixty-one".