6612491 has 2 divisors, whose sum is σ = 6612492. Its totient is φ = 6612490.

The previous prime is 6612481. The next prime is 6612499. The reversal of 6612491 is 1942166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6612491 - 2⁶ = 6612427 is a prime.

It is equal to p₄₅₁₉₆₄ and since 6612491 and 451964 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (6612499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306245 + 3306246.

It is an arithmetic number, because the mean of its divisors is an integer number (3306246).

Almost surely, 2^6612491 is an apocalyptic number.

6612491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6612491 is an equidigital number, since it uses as much as digits as its factorization.

6612491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 6612491 is about 2571.4764241579. The cubic root of 6612491 is about 187.6960059937.

The spelling of 6612491 in words is "six million, six hundred twelve thousand, four hundred ninety-one".