7876138 has 8 divisors (see below), whose sum is σ = 12089088. Its totient is φ = 3846444.

The previous prime is 7876123. The next prime is 7876147. The reversal of 7876138 is 8316787.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7876138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45706 + ... + 45877.

It is an arithmetic number, because the mean of its divisors is an integer number (1511136).

Almost surely, 2^7876138 is an apocalyptic number.

7876138 is a deficient number, since it is larger than the sum of its proper divisors (4212950).

7876138 is a wasteful number, since it uses less digits than its factorization.

7876138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91628.

The product of its digits is 56448, while the sum is 40.

The square root of 7876138 is about 2806.4457949513. The cubic root of 7876138 is about 198.9624433557.

The spelling of 7876138 in words is "seven million, eight hundred seventy-six thousand, one hundred thirty-eight".