725471 has 4 divisors (see below), whose sum is σ = 727200. Its totient is φ = 723744.

The previous prime is 725449. The next prime is 725479. The reversal of 725471 is 174527.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 725471 - 2¹⁰ = 724447 is a prime.

It is a super-3 number, since 3×725471³ = 1145463947200986333, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725479) 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, 215 + ... + 1223.

It is an arithmetic number, because the mean of its divisors is an integer number (181800).

2⁷²⁵⁴⁷¹ is an apocalyptic number.

725471 is a deficient number, since it is larger than the sum of its proper divisors (1729).

725471 is a wasteful number, since it uses less digits than its factorization.

725471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728.

The product of its digits is 1960, while the sum is 26.

The square root of 725471 is about 851.7458541138. The cubic root of 725471 is about 89.8545386893.

Adding to 725471 its reverse (174527), we get a palindrome (899998).

The spelling of 725471 in words is "seven hundred twenty-five thousand, four hundred seventy-one".