838425 has 24 divisors (see below), whose sum is σ = 1585216. Its totient is φ = 383040.

The previous prime is 838421. The next prime is 838429. The reversal of 838425 is 524838.

838425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (838421) and next prime (838429).

It is not a de Polignac number, because 838425 - 2² = 838421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 838392 and 838401.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 838425.

It is not an unprimeable number, because it can be changed into a prime (838421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274 + ... + 1323.

2⁸³⁸⁴²⁵ is an apocalyptic number.

It is an amenable number.

838425 is a deficient number, since it is larger than the sum of its proper divisors (746791).

838425 is a wasteful number, since it uses less digits than its factorization.

838425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1612 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 838425 is about 915.6555029049. The cubic root of 838425 is about 94.2948715362.

The spelling of 838425 in words is "eight hundred thirty-eight thousand, four hundred twenty-five".