738445 has 4 divisors (see below), whose sum is σ = 886140. Its totient is φ = 590752.

The previous prime is 738443. The next prime is 738457. The reversal of 738445 is 544837.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93636 + 644809 = 306^2 + 803^2 .

It is a cyclic number.

It is not a de Polignac number, because 738445 - 2¹ = 738443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73840 + ... + 73849.

It is an arithmetic number, because the mean of its divisors is an integer number (221535).

2⁷³⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

738445 is a deficient number, since it is larger than the sum of its proper divisors (147695).

738445 is a wasteful number, since it uses less digits than its factorization.

738445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147694.

The product of its digits is 13440, while the sum is 31.

The square root of 738445 is about 859.3282259998. The cubic root of 738445 is about 90.3870165002.

The spelling of 738445 in words is "seven hundred thirty-eight thousand, four hundred forty-five".