7641879 has 16 divisors (see below), whose sum is σ = 11761152. Its totient is φ = 4323168.

The previous prime is 7641863. The next prime is 7641883. The reversal of 7641879 is 9781467.

It is not a de Polignac number, because 7641879 - 2⁴ = 7641863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7641879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7641839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (735072).

Almost surely, 2^7641879 is an apocalyptic number.

7641879 is a deficient number, since it is larger than the sum of its proper divisors (4119273).

7641879 is a wasteful number, since it uses less digits than its factorization.

7641879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646.

The product of its digits is 84672, while the sum is 42.

The square root of 7641879 is about 2764.3948704916. The cubic root of 7641879 is about 196.9699852062.

The spelling of 7641879 in words is "seven million, six hundred forty-one thousand, eight hundred seventy-nine".