723029530 has 8 divisors (see below), whose sum is σ = 1301453172. Its totient is φ = 289211808.

The previous prime is 723029521. The next prime is 723029557. The reversal of 723029530 is 35920327.

It can be written as a sum of positive squares in 2 ways, for example, as 716044081 + 6985449 = 26759^2 + 2643^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 723029492 and 723029501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36151467 + ... + 36151486.

Almost surely, 2^723029530 is an apocalyptic number.

723029530 is a deficient number, since it is larger than the sum of its proper divisors (578423642).

723029530 is a wasteful number, since it uses less digits than its factorization.

723029530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72302960.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 723029530 is about 26889.2084301491. The cubic root of 723029530 is about 897.5362782541.

Adding to 723029530 its reverse (35920327), we get a palindrome (758949857).

The spelling of 723029530 in words is "seven hundred twenty-three million, twenty-nine thousand, five hundred thirty".