726425 has 18 divisors (see below), whose sum is σ = 1049598. Its totient is φ = 497280.

The previous prime is 726419. The next prime is 726431. The reversal of 726425 is 524627.

726425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (726419) and next prime (726431).

It can be written as a sum of positive squares in 3 ways, for example, as 67081 + 659344 = 259^2 + 812^2 .

It is not a de Polignac number, because 726425 - 2⁸ = 726169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 726394 and 726403.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726425.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 929 + ... + 1521.

It is an arithmetic number, because the mean of its divisors is an integer number (58311).

2⁷²⁶⁴²⁵ is an apocalyptic number.

It is an amenable number.

726425 is a deficient number, since it is larger than the sum of its proper divisors (323173).

726425 is a wasteful number, since it uses less digits than its factorization.

726425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 605 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 726425 is about 852.3056963320. The cubic root of 726425 is about 89.8939079095.

The spelling of 726425 in words is "seven hundred twenty-six thousand, four hundred twenty-five".