425869877 has 4 divisors (see below), whose sum is σ = 430004640. Its totient is φ = 421735116.

The previous prime is 425869861. The next prime is 425869883. The reversal of 425869877 is 778968524.

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.

It is a cyclic number.

It is not a de Polignac number, because 425869877 - 2⁴ = 425869861 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 (425869897) 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, 2067227 + ... + 2067432.

It is an arithmetic number, because the mean of its divisors is an integer number (107501160).

Almost surely, 2^425869877 is an apocalyptic number.

It is an amenable number.

425869877 is a deficient number, since it is larger than the sum of its proper divisors (4134763).

425869877 is a wasteful number, since it uses less digits than its factorization.

425869877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134762.

The product of its digits is 6773760, while the sum is 56.

The square root of 425869877 is about 20636.6149598232. The cubic root of 425869877 is about 752.3599012186.

The spelling of 425869877 in words is "four hundred twenty-five million, eight hundred sixty-nine thousand, eight hundred seventy-seven".