1769920089 has 16 divisors (see below), whose sum is σ = 2703827328. Its totient is φ = 1008830592.

The previous prime is 1769920069. The next prime is 1769920093. The reversal of 1769920089 is 9800299671.

It is a happy number.

It is not a de Polignac number, because 1769920089 - 2²⁰ = 1768871513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1769920069) 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 in 15 ways as a sum of consecutive naturals, for example, 97812 + ... + 114485.

It is an arithmetic number, because the mean of its divisors is an integer number (168989208).

Almost surely, 2^1769920089 is an apocalyptic number.

It is an amenable number.

1769920089 is a deficient number, since it is larger than the sum of its proper divisors (933907239).

1769920089 is a wasteful number, since it uses less digits than its factorization.

1769920089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212704.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 1769920089 is about 42070.4182175552. The cubic root of 1769920089 is about 1209.6262964977.

The spelling of 1769920089 in words is "one billion, seven hundred sixty-nine million, nine hundred twenty thousand, eighty-nine".