1689045607 has 2 divisors, whose sum is σ = 1689045608. Its totient is φ = 1689045606.

The previous prime is 1689045599. The next prime is 1689045613. The reversal of 1689045607 is 7065409861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1689045607 - 2³ = 1689045599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1689045647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844522803 + 844522804.

It is an arithmetic number, because the mean of its divisors is an integer number (844522804).

Almost surely, 2^1689045607 is an apocalyptic number.

1689045607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689045607 is an equidigital number, since it uses as much as digits as its factorization.

1689045607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 1689045607 is about 41098.0000364981. Note that the first 4 decimals coincide. The cubic root of 1689045607 is about 1190.9141592714.

The spelling of 1689045607 in words is "one billion, six hundred eighty-nine million, forty-five thousand, six hundred seven".