734021 has 2 divisors, whose sum is σ = 734022. Its totient is φ = 734020.

The previous prime is 734017. The next prime is 734047. The reversal of 734021 is 120437.

It is a happy number.

734021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390625 + 343396 = 625^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 734021 - 2² = 734017 is a prime.

It is a Chen prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (734221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367010 + 367011.

It is an arithmetic number, because the mean of its divisors is an integer number (367011).

2⁷³⁴⁰²¹ is an apocalyptic number.

It is an amenable number.

734021 is a deficient number, since it is larger than the sum of its proper divisors (1).

734021 is an equidigital number, since it uses as much as digits as its factorization.

734021 is an evil number, because the sum of its binary digits is even.

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

The square root of 734021 is about 856.7502553253. The cubic root of 734021 is about 90.2061529423.

Adding to 734021 its reverse (120437), we get a palindrome (854458).

The spelling of 734021 in words is "seven hundred thirty-four thousand, twenty-one".