2929681 has 8 divisors (see below), whose sum is σ = 3011904. Its totient is φ = 2848560.

The previous prime is 2929669. The next prime is 2929687. The reversal of 2929681 is 1869292.

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 2929681 - 2¹⁵ = 2896913 is a prime.

It is a super-2 number, since 2×2929681² = 17166061523522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2929681.

It is not an unprimeable number, because it can be changed into a prime (2929687) 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, 8686 + ... + 9016.

It is an arithmetic number, because the mean of its divisors is an integer number (376488).

2^2929681 is an apocalyptic number.

It is an amenable number.

2929681 is a deficient number, since it is larger than the sum of its proper divisors (82223).

2929681 is a wasteful number, since it uses less digits than its factorization.

2929681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its digits is 15552, while the sum is 37.

The square root of 2929681 is about 1711.6310934311. The cubic root of 2929681 is about 143.0891744966.

The spelling of 2929681 in words is "two million, nine hundred twenty-nine thousand, six hundred eighty-one".