738391 has 2 divisors, whose sum is σ = 738392. Its totient is φ = 738390.

The previous prime is 738383. The next prime is 738401. The reversal of 738391 is 193837.

738391 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 is a cyclic number.

It is not a de Polignac number, because 738391 - 2³ = 738383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (738301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369195 + 369196.

It is an arithmetic number, because the mean of its divisors is an integer number (369196).

2⁷³⁸³⁹¹ is an apocalyptic number.

738391 is a deficient number, since it is larger than the sum of its proper divisors (1).

738391 is an equidigital number, since it uses as much as digits as its factorization.

738391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 738391 is about 859.2968055335. The cubic root of 738391 is about 90.3848132136.

It can be divided in two parts, 73 and 8391, that added together give a square (8464 = 92²).

The spelling of 738391 in words is "seven hundred thirty-eight thousand, three hundred ninety-one".