425428317 has 6 divisors (see below), whose sum is σ = 614507582. Its totient is φ = 283618872.

The previous prime is 425428313. The next prime is 425428319. The reversal of 425428317 is 713824524.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 425143161 + 285156 = 20619^2 + 534^2 .

It is not a de Polignac number, because 425428317 - 2² = 425428313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425428313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23634898 + ... + 23634915.

Almost surely, 2^425428317 is an apocalyptic number.

It is an amenable number.

425428317 is a deficient number, since it is larger than the sum of its proper divisors (189079265).

425428317 is a wasteful number, since it uses less digits than its factorization.

425428317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47269819 (or 47269816 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 425428317 is about 20625.9137252147. The cubic root of 425428317 is about 752.0997850507.

The spelling of 425428317 in words is "four hundred twenty-five million, four hundred twenty-eight thousand, three hundred seventeen".