723469 has 4 divisors (see below), whose sum is σ = 766044. Its totient is φ = 680896.

The previous prime is 723467. The next prime is 723473. The reversal of 723469 is 964327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 660969 + 62500 = 813^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 723469 - 2¹ = 723467 is a prime.

It is a super-2 number, since 2×723469² = 1046814787922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 723469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21262 + ... + 21295.

It is an arithmetic number, because the mean of its divisors is an integer number (191511).

2⁷²³⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

723469 is a deficient number, since it is larger than the sum of its proper divisors (42575).

723469 is a wasteful number, since it uses less digits than its factorization.

723469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42574.

The product of its digits is 9072, while the sum is 31.

The square root of 723469 is about 850.5698090104. The cubic root of 723469 is about 89.7718087509.

The spelling of 723469 in words is "seven hundred twenty-three thousand, four hundred sixty-nine".