1685106607 has 2 divisors, whose sum is σ = 1685106608. Its totient is φ = 1685106606.

The previous prime is 1685106583. The next prime is 1685106613. The reversal of 1685106607 is 7066015861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1685106607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1685106607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1685106617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842553303 + 842553304.

It is an arithmetic number, because the mean of its divisors is an integer number (842553304).

Almost surely, 2^1685106607 is an apocalyptic number.

1685106607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1685106607 is an equidigital number, since it uses as much as digits as its factorization.

1685106607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1685106607 is about 41050.0500243301. The cubic root of 1685106607 is about 1189.9876671744.

The spelling of 1685106607 in words is "one billion, six hundred eighty-five million, one hundred six thousand, six hundred seven".