723046 has 4 divisors (see below), whose sum is σ = 1084572. Its totient is φ = 361522.

The previous prime is 723043. The next prime is 723049. The reversal of 723046 is 640327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 640327 = 59 ⋅10853.

It is an interprime number because it is at equal distance from previous prime (723043) and next prime (723049).

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180760 + ... + 180763.

It is an arithmetic number, because the mean of its divisors is an integer number (271143).

2⁷²³⁰⁴⁶ is an apocalyptic number.

723046 is a deficient number, since it is larger than the sum of its proper divisors (361526).

723046 is a wasteful number, since it uses less digits than its factorization.

723046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361525.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 723046 is about 850.3211158145. The cubic root of 723046 is about 89.7543093241.

The spelling of 723046 in words is "seven hundred twenty-three thousand, forty-six".