723454 has 4 divisors (see below), whose sum is σ = 1085184. Its totient is φ = 361726.

The previous prime is 723451. The next prime is 723467. The reversal of 723454 is 454327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454327 = 67 ⋅6781.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180862 + ... + 180865.

It is an arithmetic number, because the mean of its divisors is an integer number (271296).

2⁷²³⁴⁵⁴ is an apocalyptic number.

723454 is a deficient number, since it is larger than the sum of its proper divisors (361730).

723454 is a wasteful number, since it uses less digits than its factorization.

723454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361729.

The product of its digits is 3360, while the sum is 25.

The square root of 723454 is about 850.5609913463. The cubic root of 723454 is about 89.7711883205.

The spelling of 723454 in words is "seven hundred twenty-three thousand, four hundred fifty-four".