2698989 has 8 divisors (see below), whose sum is σ = 3686592. Its totient is φ = 1755360.

The previous prime is 2698979. The next prime is 2699009. The reversal of 2698989 is 9898962.

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

It is not a de Polignac number, because 2698989 - 2¹² = 2694893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2698979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10849 + ... + 11094.

It is an arithmetic number, because the mean of its divisors is an integer number (460824).

2^2698989 is an apocalyptic number.

It is an amenable number.

2698989 is a deficient number, since it is larger than the sum of its proper divisors (987603).

2698989 is a wasteful number, since it uses less digits than its factorization.

2698989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21987.

The product of its digits is 559872, while the sum is 51.

The square root of 2698989 is about 1642.8600062087. The cubic root of 2698989 is about 139.2302826671.

The spelling of 2698989 in words is "two million, six hundred ninety-eight thousand, nine hundred eighty-nine".