730636 has 6 divisors (see below), whose sum is σ = 1278620. Its totient is φ = 365316.

The previous prime is 730633. The next prime is 730637. The reversal of 730636 is 636037.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 730636.

It is not an unprimeable number, because it can be changed into a prime (730633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91326 + ... + 91333.

2⁷³⁰⁶³⁶ is an apocalyptic number.

It is an amenable number.

730636 is a deficient number, since it is larger than the sum of its proper divisors (547984).

730636 is a wasteful number, since it uses less digits than its factorization.

730636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182663 (or 182661 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 730636 is about 854.7724843489. The cubic root of 730636 is about 90.0672748026.

The spelling of 730636 in words is "seven hundred thirty thousand, six hundred thirty-six".