1606424969 has 2 divisors, whose sum is σ = 1606424970. Its totient is φ = 1606424968.

The previous prime is 1606424951. The next prime is 1606424971. The reversal of 1606424969 is 9694246061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 963295369 + 643129600 = 31037^2 + 25360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606424969 - 2⁸ = 1606424713 is a prime.

It is a super-2 number, since 2×1606424969² = 5161202362053301922, which contains 22 as substring.

Together with 1606424971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1606424909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803212484 + 803212485.

It is an arithmetic number, because the mean of its divisors is an integer number (803212485).

Almost surely, 2^1606424969 is an apocalyptic number.

It is an amenable number.

1606424969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606424969 is an equidigital number, since it uses as much as digits as its factorization.

1606424969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 1606424969 is about 40080.2316485322. The cubic root of 1606424969 is about 1171.1705646670.

The spelling of 1606424969 in words is "one billion, six hundred six million, four hundred twenty-four thousand, nine hundred sixty-nine".