7661679 has 12 divisors (see below), whose sum is σ = 10853064. Its totient is φ = 4806784.

The previous prime is 7661677. The next prime is 7661707. The reversal of 7661679 is 9761667.

It is not a de Polignac number, because 7661679 - 2¹ = 7661677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7661679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3552 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (904422).

Almost surely, 2^7661679 is an apocalyptic number.

7661679 is a deficient number, since it is larger than the sum of its proper divisors (3191385).

7661679 is a wasteful number, since it uses less digits than its factorization.

7661679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874 (or 8857 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 7661679 is about 2767.9738076795. The cubic root of 7661679 is about 197.1399539735.

The spelling of 7661679 in words is "seven million, six hundred sixty-one thousand, six hundred seventy-nine".