425399 has 8 divisors (see below), whose sum is σ = 469392. Its totient is φ = 383040.

The previous prime is 425393. The next prime is 425417. The reversal of 425399 is 993524.

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 425399 - 2¹² = 421303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425399.

It is not an unprimeable number, because it can be changed into a prime (425393) 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, 179 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (58674).

2⁴²⁵³⁹⁹ is an apocalyptic number.

425399 is a deficient number, since it is larger than the sum of its proper divisors (43993).

425399 is a wasteful number, since it uses less digits than its factorization.

425399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 9720, while the sum is 32.

The square root of 425399 is about 652.2261877600. The cubic root of 425399 is about 75.2082508489.

The spelling of 425399 in words is "four hundred twenty-five thousand, three hundred ninety-nine".