1690692189 has 16 divisors (see below), whose sum is σ = 2311744512. Its totient is φ = 1098499248.

The previous prime is 1690692121. The next prime is 1690692197. The reversal of 1690692189 is 9812960961.

It is not a de Polignac number, because 1690692189 - 2¹³ = 1690683997 is a prime.

It is a super-2 number, since 2×1690692189² = 5716880155891223442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690692889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45574 + ... + 73880.

It is an arithmetic number, because the mean of its divisors is an integer number (144484032).

Almost surely, 2^1690692189 is an apocalyptic number.

It is an amenable number.

1690692189 is a deficient number, since it is larger than the sum of its proper divisors (621052323).

1690692189 is a wasteful number, since it uses less digits than its factorization.

1690692189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28816.

The product of its (nonzero) digits is 419904, while the sum is 51.

The square root of 1690692189 is about 41118.0275426728. The cubic root of 1690692189 is about 1191.3010248761.

The spelling of 1690692189 in words is "one billion, six hundred ninety million, six hundred ninety-two thousand, one hundred eighty-nine".