725386 has 4 divisors (see below), whose sum is σ = 1088082. Its totient is φ = 362692.

The previous prime is 725381. The next prime is 725393. The reversal of 725386 is 683527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683527 = 13 ⋅52579.

It can be written as a sum of positive squares in only one way, i.e., 383161 + 342225 = 619^2 + 585^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (725381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181345 + ... + 181348.

2⁷²⁵³⁸⁶ is an apocalyptic number.

725386 is a deficient number, since it is larger than the sum of its proper divisors (362696).

725386 is a wasteful number, since it uses less digits than its factorization.

725386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362695.

The product of its digits is 10080, while the sum is 31.

The square root of 725386 is about 851.6959551389. The cubic root of 725386 is about 89.8510292754.

It can be divided in two parts, 725 and 386, that added together give a palindrome (1111).

The spelling of 725386 in words is "seven hundred twenty-five thousand, three hundred eighty-six".