1996612989 has 8 divisors (see below), whose sum is σ = 3042457920. Its totient is φ = 1140921696.

The previous prime is 1996612913. The next prime is 1996612997. The reversal of 1996612989 is 9892166991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1996612989 - 2⁷ = 1996612861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996611989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47538384 + ... + 47538425.

It is an arithmetic number, because the mean of its divisors is an integer number (380307240).

Almost surely, 2^1996612989 is an apocalyptic number.

It is an amenable number.

1996612989 is a deficient number, since it is larger than the sum of its proper divisors (1045844931).

1996612989 is an equidigital number, since it uses as much as digits as its factorization.

1996612989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95076819.

The product of its digits is 3779136, while the sum is 60.

The square root of 1996612989 is about 44683.4755698345. The cubic root of 1996612989 is about 1259.2094202848.

The spelling of 1996612989 in words is "one billion, nine hundred ninety-six million, six hundred twelve thousand, nine hundred eighty-nine".