1690607068 has 6 divisors (see below), whose sum is σ = 2958562376. Its totient is φ = 845303532.

The previous prime is 1690607033. The next prime is 1690607069. The reversal of 1690607068 is 8607060961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690607069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211325880 + ... + 211325887.

Almost surely, 2^1690607068 is an apocalyptic number.

It is an amenable number.

1690607068 is a deficient number, since it is larger than the sum of its proper divisors (1267955308).

1690607068 is a wasteful number, since it uses less digits than its factorization.

1690607068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422651771 (or 422651769 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1690607068 is about 41116.9924483783. The cubic root of 1690607068 is about 1191.2810317954.

The spelling of 1690607068 in words is "one billion, six hundred ninety million, six hundred seven thousand, sixty-eight".