725047 has 4 divisors (see below), whose sum is σ = 727000. Its totient is φ = 723096.

The previous prime is 725041. The next prime is 725057. The reversal of 725047 is 740527.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725047 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 (725041) 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, 228 + ... + 1225.

It is an arithmetic number, because the mean of its divisors is an integer number (181750).

2⁷²⁵⁰⁴⁷ is an apocalyptic number.

725047 is a deficient number, since it is larger than the sum of its proper divisors (1953).

725047 is a wasteful number, since it uses less digits than its factorization.

725047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 725047 is about 851.4969171994. The cubic root of 725047 is about 89.8370301792.

It can be divided in two parts, 72504 and 7, that multiplied together give a triangular number (507528 = T₁₀₀₇).

The spelling of 725047 in words is "seven hundred twenty-five thousand, forty-seven".