723001 has 4 divisors (see below), whose sum is σ = 738432. Its totient is φ = 707572.

The previous prime is 722983. The next prime is 723029. The reversal of 723001 is 100327.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100327 = 41 ⋅2447.

It is a cyclic number.

It is not a de Polignac number, because 723001 - 2⁹ = 722489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723031) 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, 7645 + ... + 7738.

It is an arithmetic number, because the mean of its divisors is an integer number (184608).

2⁷²³⁰⁰¹ is an apocalyptic number.

It is an amenable number.

723001 is a deficient number, since it is larger than the sum of its proper divisors (15431).

723001 is a wasteful number, since it uses less digits than its factorization.

723001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15430.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 723001 is about 850.2946548109. The cubic root of 723001 is about 89.7524472813.

Adding to 723001 its reverse (100327), we get a palindrome (823328).

The spelling of 723001 in words is "seven hundred twenty-three thousand, one", and thus it is an iban number.