724169 has 4 divisors (see below), whose sum is σ = 726144. Its totient is φ = 722196.

The previous prime is 724153. The next prime is 724187. The reversal of 724169 is 961427.

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 724169 - 2⁴ = 724153 is a prime.

It is a super-2 number, since 2×724169² = 1048841481122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724469) 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, 257 + ... + 1230.

It is an arithmetic number, because the mean of its divisors is an integer number (181536).

2⁷²⁴¹⁶⁹ is an apocalyptic number.

It is an amenable number.

724169 is a deficient number, since it is larger than the sum of its proper divisors (1975).

724169 is a wasteful number, since it uses less digits than its factorization.

724169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its digits is 3024, while the sum is 29.

The square root of 724169 is about 850.9811983822. The cubic root of 724169 is about 89.8007526355.

The spelling of 724169 in words is "seven hundred twenty-four thousand, one hundred sixty-nine".