738643 has 2 divisors, whose sum is σ = 738644. Its totient is φ = 738642.

The previous prime is 738623. The next prime is 738677. The reversal of 738643 is 346837.

738643 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 738643 - 2¹³ = 730451 is a prime.

It is not a weakly prime, because it can be changed into another prime (738623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369321 + 369322.

It is an arithmetic number, because the mean of its divisors is an integer number (369322).

2⁷³⁸⁶⁴³ is an apocalyptic number.

738643 is a deficient number, since it is larger than the sum of its proper divisors (1).

738643 is an equidigital number, since it uses as much as digits as its factorization.

738643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 738643 is about 859.4434245487. The cubic root of 738643 is about 90.3950942988.

The spelling of 738643 in words is "seven hundred thirty-eight thousand, six hundred forty-three".