738506 has 4 divisors (see below), whose sum is σ = 1107762. Its totient is φ = 369252.

The previous prime is 738499. The next prime is 738509. The reversal of 738506 is 605837.

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

It can be written as a sum of positive squares in only one way, i.e., 737881 + 625 = 859^2 + 25^2 .

It is a super-2 number, since 2×738506² = 1090782224072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (738509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184625 + ... + 184628.

2⁷³⁸⁵⁰⁶ is an apocalyptic number.

738506 is a deficient number, since it is larger than the sum of its proper divisors (369256).

738506 is a wasteful number, since it uses less digits than its factorization.

738506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369255.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 738506 is about 859.3637181078. The cubic root of 738506 is about 90.3895052688.

The spelling of 738506 in words is "seven hundred thirty-eight thousand, five hundred six".