7869438 has 12 divisors (see below), whose sum is σ = 17050488. Its totient is φ = 2623140.

The previous prime is 7869431. The next prime is 7869451. The reversal of 7869438 is 8349687.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7869393 and 7869402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7869431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218578 + ... + 218613.

It is an arithmetic number, because the mean of its divisors is an integer number (1420874).

Almost surely, 2^7869438 is an apocalyptic number.

7869438 is an abundant number, since it is smaller than the sum of its proper divisors (9181050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7869438 is a wasteful number, since it uses less digits than its factorization.

7869438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437199 (or 437196 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7869438 is about 2805.2518603505. The cubic root of 7869438 is about 198.9060101755.

Subtracting 7869438 from its reverse (8349687), we obtain a square (480249 = 693²).

The spelling of 7869438 in words is "seven million, eight hundred sixty-nine thousand, four hundred thirty-eight".