7649867 has 2 divisors, whose sum is σ = 7649868. Its totient is φ = 7649866.

The previous prime is 7649849. The next prime is 7649879. The reversal of 7649867 is 7689467.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7689467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7649867 - 2¹⁰ = 7648843 is a prime.

It is not a weakly prime, because it can be changed into another prime (7649897) 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 as a sum of consecutive naturals, namely, 3824933 + 3824934.

It is an arithmetic number, because the mean of its divisors is an integer number (3824934).

Almost surely, 2^7649867 is an apocalyptic number.

7649867 is a deficient number, since it is larger than the sum of its proper divisors (1).

7649867 is an equidigital number, since it uses as much as digits as its factorization.

7649867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 7649867 is about 2765.8392939576. The cubic root of 7649867 is about 197.0385917335.

The spelling of 7649867 in words is "seven million, six hundred forty-nine thousand, eight hundred sixty-seven".