425739 has 8 divisors (see below), whose sum is σ = 571392. Its totient is φ = 281960.

The previous prime is 425713. The next prime is 425779. The reversal of 425739 is 937524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425739 - 2¹² = 421643 is a prime.

It is a super-2 number, since 2×425739² = 362507392242, which contains 22 as substring.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425739.

It is not an unprimeable number, because it can be changed into a prime (425779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 944.

It is an arithmetic number, because the mean of its divisors is an integer number (71424).

2⁴²⁵⁷³⁹ is an apocalyptic number.

425739 is a deficient number, since it is larger than the sum of its proper divisors (145653).

425739 is a wasteful number, since it uses less digits than its factorization.

425739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937.

The product of its digits is 7560, while the sum is 30.

The square root of 425739 is about 652.4867814753. The cubic root of 425739 is about 75.2282822357.

The spelling of 425739 in words is "four hundred twenty-five thousand, seven hundred thirty-nine".