2698491 has 8 divisors (see below), whose sum is σ = 3608064.
Its totient is φ = 1793960.
The previous prime is 2698481. The next prime is 2698499. The reversal of 2698491 is 1948962.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2698491 - 213 = 2690299 is a prime.
It is a d-powerful number, because it can be written as 27 + 67 + 92 + 87 + 49 + 95 + 1 .
2698491 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (2698499) 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, 250 + ... + 2336.
It is an arithmetic number, because the mean of its divisors is an integer number (451008).
22698491 is an apocalyptic number.
2698491 is a deficient number, since it is larger than the sum of its proper divisors (909573).
2698491 is a wasteful number, since it uses less digits than its factorization.
2698491 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2521.
The product of its digits is 31104, while the sum is 39.
The square root of 2698491 is about 1642.7084342634.
The cubic root of 2698491 is about 139.2217188499.
The spelling of 2698491 in words is "two million, six hundred ninety-eight thousand, four hundred ninety-one".