1209764983 has 16 divisors (see below), whose sum is σ = 1423566144. Its totient is φ = 1006467840.

The previous prime is 1209764981. The next prime is 1209765001. The reversal of 1209764983 is 3894679021.

It is not a de Polignac number, because 1209764983 - 2¹ = 1209764981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209764981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45841 + ... + 67237.

It is an arithmetic number, because the mean of its divisors is an integer number (88972884).

Almost surely, 2^1209764983 is an apocalyptic number.

1209764983 is a deficient number, since it is larger than the sum of its proper divisors (213801161).

1209764983 is a wasteful number, since it uses less digits than its factorization.

1209764983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21642.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1209764983 is about 34781.6759659451. The cubic root of 1209764983 is about 1065.5332420403.

The spelling of 1209764983 in words is "one billion, two hundred nine million, seven hundred sixty-four thousand, nine hundred eighty-three".