738636 has 12 divisors (see below), whose sum is σ = 1723512. Its totient is φ = 246208.

The previous prime is 738623. The next prime is 738643. The reversal of 738636 is 636837.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 738597 and 738606.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 738636.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30765 + ... + 30788.

It is an arithmetic number, because the mean of its divisors is an integer number (143626).

2⁷³⁸⁶³⁶ is an apocalyptic number.

It is an amenable number.

738636 is an abundant number, since it is smaller than the sum of its proper divisors (984876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

738636 is a wasteful number, since it uses less digits than its factorization.

738636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61560 (or 61558 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 738636 is about 859.4393521360. The cubic root of 738636 is about 90.3948087446.

The spelling of 738636 in words is "seven hundred thirty-eight thousand, six hundred thirty-six".