730690 has 16 divisors (see below), whose sum is σ = 1331640. Its totient is φ = 288640.

The previous prime is 730679. The next prime is 730727. The reversal of 730690 is 96037.

It can be written as a sum of positive squares in 4 ways, for example, as 393129 + 337561 = 627^2 + 581^2 .

It is a super-2 number, since 2×730690² = 1067815752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480 + ... + 1300.

2⁷³⁰⁶⁹⁰ is an apocalyptic number.

730690 is a deficient number, since it is larger than the sum of its proper divisors (600950).

730690 is a wasteful number, since it uses less digits than its factorization.

730690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 730690 is about 854.8040711181. The cubic root of 730690 is about 90.0694936517.

It can be divided in two parts, 7306 and 90, that added together give a square (7396 = 86²).

The spelling of 730690 in words is "seven hundred thirty thousand, six hundred ninety".