425974 has 4 divisors (see below), whose sum is σ = 638964. Its totient is φ = 212986.

The previous prime is 425959. The next prime is 425977. The reversal of 425974 is 479524.

It is a semiprime because it is the product of two primes.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106492 + ... + 106495.

It is an arithmetic number, because the mean of its divisors is an integer number (159741).

425974 is a Friedman number, since it can be written as ((9+4)*4^7-5)*2, using all its digits and the basic arithmetic operations.

2⁴²⁵⁹⁷⁴ is an apocalyptic number.

425974 is a deficient number, since it is larger than the sum of its proper divisors (212990).

425974 is a wasteful number, since it uses less digits than its factorization.

425974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212989.

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

The square root of 425974 is about 652.6668369084. Note that the first 3 decimals coincide. The cubic root of 425974 is about 75.2421212267.

The spelling of 425974 in words is "four hundred twenty-five thousand, nine hundred seventy-four".