2896671989 has 4 divisors (see below), whose sum is σ = 2996557260. Its totient is φ = 2796786720.

The previous prime is 2896671979. The next prime is 2896672019. The reversal of 2896671989 is 9891766982.

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

It can be written as a sum of positive squares in 2 ways, for example, as 956974225 + 1939697764 = 30935^2 + 44042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2896671989 is a prime.

It is a super-2 number, since 2×2896671989² = 16781417223714432242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2896671979) 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 3 ways as a sum of consecutive naturals, for example, 49942592 + ... + 49942649.

It is an arithmetic number, because the mean of its divisors is an integer number (749139315).

Almost surely, 2^2896671989 is an apocalyptic number.

2896671989 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2896671989 is a deficient number, since it is larger than the sum of its proper divisors (99885271).

2896671989 is an equidigital number, since it uses as much as digits as its factorization.

2896671989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99885270.

The product of its digits is 23514624, while the sum is 65.

The square root of 2896671989 is about 53820.7393947723. The cubic root of 2896671989 is about 1425.4974340524.

The spelling of 2896671989 in words is "two billion, eight hundred ninety-six million, six hundred seventy-one thousand, nine hundred eighty-nine".