738705 has 32 divisors (see below), whose sum is σ = 1335168. Its totient is φ = 348480.

The previous prime is 738677. The next prime is 738707. The reversal of 738705 is 507837.

It is not a de Polignac number, because 738705 - 2¹¹ = 736657 is a prime.

It is an Ulam number.

738705 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (738707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19947 + ... + 19983.

It is an arithmetic number, because the mean of its divisors is an integer number (41724).

2⁷³⁸⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

738705 is a deficient number, since it is larger than the sum of its proper divisors (596463).

738705 is a wasteful number, since it uses less digits than its factorization.

738705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 738705 is about 859.4794936472. The cubic root of 738705 is about 90.3976234136.

It can be divided in two parts, 73 and 8705, that added together give a palindrome (8778).

The spelling of 738705 in words is "seven hundred thirty-eight thousand, seven hundred five".