723698 has 8 divisors (see below), whose sum is σ = 1090908. Its totient is φ = 360064.

The previous prime is 723661. The next prime is 723721. The reversal of 723698 is 896327.

723698 is digitally balanced in base 2, 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 619369 + 104329 = 787^2 + 323^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 723698.

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, 311 + ... + 1242.

2⁷²³⁶⁹⁸ is an apocalyptic number.

723698 is a deficient number, since it is larger than the sum of its proper divisors (367210).

723698 is a wasteful number, since it uses less digits than its factorization.

723698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788.

The product of its digits is 18144, while the sum is 35.

The square root of 723698 is about 850.7044140005. The cubic root of 723698 is about 89.7812795900.

It can be divided in two parts, 72 and 3698, that multiplied together give a square (266256 = 516²).

The spelling of 723698 in words is "seven hundred twenty-three thousand, six hundred ninety-eight".