1606673699 has 2 divisors, whose sum is σ = 1606673700. Its totient is φ = 1606673698.

The previous prime is 1606673633. The next prime is 1606673701. The reversal of 1606673699 is 9963766061.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9963766061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1606673699 - 2⁸ = 1606673443 is a prime.

Together with 1606673701, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1606673699.

It is not a weakly prime, because it can be changed into another prime (1606673609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803336849 + 803336850.

It is an arithmetic number, because the mean of its divisors is an integer number (803336850).

Almost surely, 2^1606673699 is an apocalyptic number.

1606673699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606673699 is an equidigital number, since it uses as much as digits as its factorization.

1606673699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The square root of 1606673699 is about 40083.3344296604. The cubic root of 1606673699 is about 1171.2310074155.

The spelling of 1606673699 in words is "one billion, six hundred six million, six hundred seventy-three thousand, six hundred ninety-nine".