1690930079 has 4 divisors (see below), whose sum is σ = 1705894176. Its totient is φ = 1675965984.

The previous prime is 1690930069. The next prime is 1690930097. The reversal of 1690930079 is 9700390961.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1690930079 - 2¹⁶ = 1690864543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690930069) 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 3 ways as a sum of consecutive naturals, for example, 7481879 + ... + 7482104.

It is an arithmetic number, because the mean of its divisors is an integer number (426473544).

Almost surely, 2^1690930079 is an apocalyptic number.

1690930079 is a deficient number, since it is larger than the sum of its proper divisors (14964097).

1690930079 is a wasteful number, since it uses less digits than its factorization.

1690930079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14964096.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 1690930079 is about 41120.9202110070. The cubic root of 1690930079 is about 1191.3568965307.

The spelling of 1690930079 in words is "one billion, six hundred ninety million, nine hundred thirty thousand, seventy-nine".