730669 has 2 divisors, whose sum is σ = 730670. Its totient is φ = 730668.

The previous prime is 730663. The next prime is 730679. The reversal of 730669 is 966037.

730669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405769 + 324900 = 637^2 + 570^2 .

It is a cyclic number.

It is not a de Polignac number, because 730669 - 2⁵ = 730637 is a prime.

It is a super-2 number, since 2×730669² = 1067754375122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 730669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365334 + 365335.

It is an arithmetic number, because the mean of its divisors is an integer number (365335).

2⁷³⁰⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

730669 is a deficient number, since it is larger than the sum of its proper divisors (1).

730669 is an equidigital number, since it uses as much as digits as its factorization.

730669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 730669 is about 854.7917875132. The cubic root of 730669 is about 90.0686307789.

The spelling of 730669 in words is "seven hundred thirty thousand, six hundred sixty-nine".