425809743 has 4 divisors (see below), whose sum is σ = 567746328. Its totient is φ = 283873160.

The previous prime is 425809733. The next prime is 425809759. The reversal of 425809743 is 347908524.

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

It is a cyclic number.

It is not a de Polignac number, because 425809743 - 2⁵ = 425809711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425809695 and 425809704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425809733) 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, 70968288 + ... + 70968293.

It is an arithmetic number, because the mean of its divisors is an integer number (141936582).

Almost surely, 2^425809743 is an apocalyptic number.

425809743 is a deficient number, since it is larger than the sum of its proper divisors (141936585).

425809743 is a wasteful number, since it uses less digits than its factorization.

425809743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141936584.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 425809743 is about 20635.1579349420. The cubic root of 425809743 is about 752.3244877881.

The spelling of 425809743 in words is "four hundred twenty-five million, eight hundred nine thousand, seven hundred forty-three".