7874638 has 8 divisors (see below), whose sum is σ = 12506832. Its totient is φ = 3705696.

The previous prime is 7874627. The next prime is 7874653. The reversal of 7874638 is 8364787.

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

It is a junction number, because it is equal to n+sod(n) for n = 7874594 and 7874603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115770 + ... + 115837.

It is an arithmetic number, because the mean of its divisors is an integer number (1563354).

Almost surely, 2^7874638 is an apocalyptic number.

7874638 is a deficient number, since it is larger than the sum of its proper divisors (4632194).

7874638 is a wasteful number, since it uses less digits than its factorization.

7874638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231626.

The product of its digits is 225792, while the sum is 43.

The square root of 7874638 is about 2806.1785402928. The cubic root of 7874638 is about 198.9498118429.

The spelling of 7874638 in words is "seven million, eight hundred seventy-four thousand, six hundred thirty-eight".