425437 has 4 divisors (see below), whose sum is σ = 426816. Its totient is φ = 424060.

The previous prime is 425423. The next prime is 425441. The reversal of 425437 is 734524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 425437 - 2⁷ = 425309 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425417) 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, 12 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (106704).

2⁴²⁵⁴³⁷ is an apocalyptic number.

It is an amenable number.

425437 is a deficient number, since it is larger than the sum of its proper divisors (1379).

425437 is an equidigital number, since it uses as much as digits as its factorization.

425437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378.

The product of its digits is 3360, while the sum is 25.

The square root of 425437 is about 652.2553181079. The cubic root of 425437 is about 75.2104901806.

The spelling of 425437 in words is "four hundred twenty-five thousand, four hundred thirty-seven".