425837869 has 4 divisors (see below), whose sum is σ = 433055520. Its totient is φ = 418620220.

The previous prime is 425837837. The next prime is 425837873. The reversal of 425837869 is 968738524.

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 425837869 - 2⁵ = 425837837 is a prime.

It is a super-2 number, since 2×425837869² = 362675781348922322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425837569) 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, 3608737 + ... + 3608854.

It is an arithmetic number, because the mean of its divisors is an integer number (108263880).

Almost surely, 2^425837869 is an apocalyptic number.

It is an amenable number.

425837869 is a deficient number, since it is larger than the sum of its proper divisors (7217651).

425837869 is an equidigital number, since it uses as much as digits as its factorization.

425837869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217650.

The product of its digits is 2903040, while the sum is 52.

The square root of 425837869 is about 20635.8394304666. The cubic root of 425837869 is about 752.3410518467.

The spelling of 425837869 in words is "four hundred twenty-five million, eight hundred thirty-seven thousand, eight hundred sixty-nine".