723523241 has 4 divisors (see below), whose sum is σ = 826883712. Its totient is φ = 620162772.

The previous prime is 723523237. The next prime is 723523253. The reversal of 723523241 is 142325327.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 723523241 - 2² = 723523237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723523231) 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, 51680225 + ... + 51680238.

It is an arithmetic number, because the mean of its divisors is an integer number (206720928).

Almost surely, 2^723523241 is an apocalyptic number.

It is an amenable number.

723523241 is a deficient number, since it is larger than the sum of its proper divisors (103360471).

723523241 is a wasteful number, since it uses less digits than its factorization.

723523241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103360470.

The product of its digits is 10080, while the sum is 29.

The square root of 723523241 is about 26898.3873308420. The cubic root of 723523241 is about 897.7405219690.

Adding to 723523241 its reverse (142325327), we get a palindrome (865848568).

The spelling of 723523241 in words is "seven hundred twenty-three million, five hundred twenty-three thousand, two hundred forty-one".