425678389 has 8 divisors (see below), whose sum is σ = 439221888. Its totient is φ = 412321920.

The previous prime is 425678369. The next prime is 425678401. The reversal of 425678389 is 983876524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425678389 - 2⁹ = 425677877 is a prime.

It is a super-3 number, since 3×425678389³ (a number of 27 digits) contains 333 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 (425678369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42127 + ... + 51244.

It is an arithmetic number, because the mean of its divisors is an integer number (54902736).

Almost surely, 2^425678389 is an apocalyptic number.

It is an amenable number.

425678389 is a deficient number, since it is larger than the sum of its proper divisors (13543499).

425678389 is an equidigital number, since it uses as much as digits as its factorization.

425678389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93515.

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

The square root of 425678389 is about 20631.9749175885. The cubic root of 425678389 is about 752.2471206888.

The spelling of 425678389 in words is "four hundred twenty-five million, six hundred seventy-eight thousand, three hundred eighty-nine".