738646 has 8 divisors (see below), whose sum is σ = 1116360. Its totient is φ = 366528.

The previous prime is 738643. The next prime is 738677. The reversal of 738646 is 646837.

738646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738643) 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, 1051 + ... + 1606.

It is an arithmetic number, because the mean of its divisors is an integer number (139545).

2⁷³⁸⁶⁴⁶ is an apocalyptic number.

738646 is a deficient number, since it is larger than the sum of its proper divisors (377714).

738646 is a wasteful number, since it uses less digits than its factorization.

738646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798.

The product of its digits is 24192, while the sum is 34.

The square root of 738646 is about 859.4451698625. The cubic root of 738646 is about 90.3952166785.

Subtracting from 738646 its reverse (646837), we obtain a square (91809 = 303²).

The spelling of 738646 in words is "seven hundred thirty-eight thousand, six hundred forty-six".