425722671 has 12 divisors (see below), whose sum is σ = 670835880. Its totient is φ = 258013680.

The previous prime is 425722657. The next prime is 425722691. The reversal of 425722671 is 176227524.

It is a happy number.

425722671 is a `hidden beast` number, since 425 + 7 + 226 + 7 + 1 = 666.

It is not a de Polignac number, because 425722671 - 2⁷ = 425722543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425722691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2150016 + ... + 2150213.

It is an arithmetic number, because the mean of its divisors is an integer number (55902990).

Almost surely, 2^425722671 is an apocalyptic number.

425722671 is a deficient number, since it is larger than the sum of its proper divisors (245113209).

425722671 is a wasteful number, since it uses less digits than its factorization.

425722671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300246 (or 4300243 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 425722671 is about 20633.0480297992. The cubic root of 425722671 is about 752.2732044278.

The spelling of 425722671 in words is "four hundred twenty-five million, seven hundred twenty-two thousand, six hundred seventy-one".