1690197692 has 6 divisors (see below), whose sum is σ = 2957845968. Its totient is φ = 845098844.

The previous prime is 1690197679. The next prime is 1690197697. The reversal of 1690197692 is 2967910961.

It is a self number, because there is not a number n which added to its sum of digits gives 1690197692.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690197697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211274708 + ... + 211274715.

It is an arithmetic number, because the mean of its divisors is an integer number (492974328).

Almost surely, 2^1690197692 is an apocalyptic number.

It is an amenable number.

1690197692 is a deficient number, since it is larger than the sum of its proper divisors (1267648276).

1690197692 is a wasteful number, since it uses less digits than its factorization.

1690197692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422549427 (or 422549425 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 50.

The square root of 1690197692 is about 41112.0139618579. The cubic root of 1690197692 is about 1191.1848688564.

The spelling of 1690197692 in words is "one billion, six hundred ninety million, one hundred ninety-seven thousand, six hundred ninety-two".