7641279 has 12 divisors (see below), whose sum is σ = 11686896. Its totient is φ = 4794432.

The previous prime is 7641259. The next prime is 7641281. The reversal of 7641279 is 9721467.

It is a happy number.

7641279 is a `hidden beast` number, since 7 + 641 + 2 + 7 + 9 = 666.

It is not a de Polignac number, because 7641279 - 2⁹ = 7640767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7641259) 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, 24819 + ... + 25124.

It is an arithmetic number, because the mean of its divisors is an integer number (973908).

Almost surely, 2^7641279 is an apocalyptic number.

7641279 is a deficient number, since it is larger than the sum of its proper divisors (4045617).

7641279 is a wasteful number, since it uses less digits than its factorization.

7641279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49966 (or 49963 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 7641279 is about 2764.2863455149. The cubic root of 7641279 is about 196.9648300568.

The spelling of 7641279 in words is "seven million, six hundred forty-one thousand, two hundred seventy-nine".