7321619 has 2 divisors, whose sum is σ = 7321620. Its totient is φ = 7321618.

The previous prime is 7321583. The next prime is 7321621. The reversal of 7321619 is 9161237.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7321619 - 2¹² = 7317523 is a prime.

It is a super-2 number, since 2×7321619² = 107212209562322, which contains 22 as substring.

Together with 7321621, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7321591 and 7321600.

It is not a weakly prime, because it can be changed into another prime (7321219) 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, 3660809 + 3660810.

It is an arithmetic number, because the mean of its divisors is an integer number (3660810).

Almost surely, 2^7321619 is an apocalyptic number.

7321619 is a deficient number, since it is larger than the sum of its proper divisors (1).

7321619 is an equidigital number, since it uses as much as digits as its factorization.

7321619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 7321619 is about 2705.8490349611. The cubic root of 7321619 is about 194.1790514019.

The spelling of 7321619 in words is "seven million, three hundred twenty-one thousand, six hundred nineteen".