723090730 has 8 divisors (see below), whose sum is σ = 1301563332. Its totient is φ = 289236288.

The previous prime is 723090701. The next prime is 723090743. The reversal of 723090730 is 37090327.

723090730 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 605996689 + 117094041 = 24617^2 + 10821^2 .

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 = 723090692 and 723090701.

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, 36154527 + ... + 36154546.

Almost surely, 2^723090730 is an apocalyptic number.

723090730 is a deficient number, since it is larger than the sum of its proper divisors (578472602).

723090730 is a wasteful number, since it uses less digits than its factorization.

723090730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72309080.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 723090730 is about 26890.3464090740. The cubic root of 723090730 is about 897.5616011804.

The spelling of 723090730 in words is "seven hundred twenty-three million, ninety thousand, seven hundred thirty".