673131619 has 2 divisors, whose sum is σ = 673131620. Its totient is φ = 673131618.

The previous prime is 673131611. The next prime is 673131637. The reversal of 673131619 is 916131376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 673131619 - 2³ = 673131611 is a prime.

It is a super-2 number, since 2×673131619² = 906212352995122322, which contains 22 as substring.

It is equal to p_34932547 and since 673131619 and 34932547 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 (673131611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336565809 + 336565810.

It is an arithmetic number, because the mean of its divisors is an integer number (336565810).

Almost surely, 2^673131619 is an apocalyptic number.

673131619 is a deficient number, since it is larger than the sum of its proper divisors (1).

673131619 is an equidigital number, since it uses as much as digits as its factorization.

673131619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 37.

The square root of 673131619 is about 25944.7801879299. The cubic root of 673131619 is about 876.3952136722.

The spelling of 673131619 in words is "six hundred seventy-three million, one hundred thirty-one thousand, six hundred nineteen".