734391 has 12 divisors (see below), whose sum is σ = 1212432. Its totient is φ = 419616.

The previous prime is 734389. The next prime is 734401. The reversal of 734391 is 193437.

It is not a de Polignac number, because 734391 - 2¹ = 734389 is a prime.

It is a d-powerful number, because it can be written as 7⁶ + 3⁹ + 3¹² + 4⁸ + 9² + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5766 + ... + 5891.

It is an arithmetic number, because the mean of its divisors is an integer number (101036).

2⁷³⁴³⁹¹ is an apocalyptic number.

734391 is a deficient number, since it is larger than the sum of its proper divisors (478041).

734391 is a wasteful number, since it uses less digits than its factorization.

734391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670 (or 11667 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 734391 is about 856.9661603587. The cubic root of 734391 is about 90.2213072182.

The spelling of 734391 in words is "seven hundred thirty-four thousand, three hundred ninety-one".