2908681 has 8 divisors (see below), whose sum is σ = 3015680. Its totient is φ = 2803248.

The previous prime is 2908679. The next prime is 2908687. The reversal of 2908681 is 1868092.

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 2908681 - 2¹ = 2908679 is a prime.

It is a super-2 number, since 2×2908681² = 16920850319522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2908687) 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, 4390 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (376960).

2^2908681 is an apocalyptic number.

It is an amenable number.

2908681 is a deficient number, since it is larger than the sum of its proper divisors (106999).

2908681 is a wasteful number, since it uses less digits than its factorization.

2908681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2908681 is about 1705.4855613578. The cubic root of 2908681 is about 142.7464658478.

The spelling of 2908681 in words is "two million, nine hundred eight thousand, six hundred eighty-one".