2698932891 has 4 divisors (see below), whose sum is σ = 3598577192. Its totient is φ = 1799288592.

The previous prime is 2698932889. The next prime is 2698932979. The reversal of 2698932891 is 1982398962.

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

It is not a de Polignac number, because 2698932891 - 2¹ = 2698932889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2698932851) 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, 449822146 + ... + 449822151.

It is an arithmetic number, because the mean of its divisors is an integer number (899644298).

Almost surely, 2^2698932891 is an apocalyptic number.

2698932891 is a deficient number, since it is larger than the sum of its proper divisors (899644301).

2698932891 is an equidigital number, since it uses as much as digits as its factorization.

2698932891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899644300.

The product of its digits is 3359232, while the sum is 57.

The square root of 2698932891 is about 51951.2549511559. The cubic root of 2698932891 is about 1392.2931784583.

The spelling of 2698932891 in words is "two billion, six hundred ninety-eight million, nine hundred thirty-two thousand, eight hundred ninety-one".