7876641 has 8 divisors (see below), whose sum is σ = 10531840. Its totient is φ = 5236272.

The previous prime is 7876607. The next prime is 7876643. The reversal of 7876641 is 1466787.

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

It is not a de Polignac number, because 7876641 - 2¹³ = 7868449 is a prime.

It is a Duffinian number.

7876641 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7876641.

It is not an unprimeable number, because it can be changed into a prime (7876643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2401 + ... + 4638.

It is an arithmetic number, because the mean of its divisors is an integer number (1316480).

Almost surely, 2^7876641 is an apocalyptic number.

It is an amenable number.

7876641 is a deficient number, since it is larger than the sum of its proper divisors (2655199).

7876641 is a wasteful number, since it uses less digits than its factorization.

7876641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415.

The product of its digits is 56448, while the sum is 39.

The square root of 7876641 is about 2806.5354086489. The cubic root of 7876641 is about 198.9666787639.

The spelling of 7876641 in words is "seven million, eight hundred seventy-six thousand, six hundred forty-one".