723434541 has 16 divisors (see below), whose sum is σ = 1022269248. Its totient is φ = 453497600.

The previous prime is 723434527. The next prime is 723434561. The reversal of 723434541 is 145434327.

It is a cyclic number.

It is not a de Polignac number, because 723434541 - 2²² = 719240237 is a prime.

It is a super-2 number, since 2×723434541² = 1046715070223761362, which contains 22 as substring.

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 (723434561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54226 + ... + 66236.

It is an arithmetic number, because the mean of its divisors is an integer number (63891828).

Almost surely, 2^723434541 is an apocalyptic number.

It is an amenable number.

723434541 is a deficient number, since it is larger than the sum of its proper divisors (298834707).

723434541 is a wasteful number, since it uses less digits than its factorization.

723434541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13212.

The product of its digits is 40320, while the sum is 33.

The square root of 723434541 is about 26896.7384825744. The cubic root of 723434541 is about 897.7038344405.

Adding to 723434541 its reverse (145434327), we get a palindrome (868868868).

The spelling of 723434541 in words is "seven hundred twenty-three million, four hundred thirty-four thousand, five hundred forty-one".