2916981 has 12 divisors (see below), whose sum is σ = 4256460. Its totient is φ = 1924800.

The previous prime is 2916971. The next prime is 2917001. The reversal of 2916981 is 1896192.

It can be written as a sum of positive squares in 2 ways, for example, as 2340900 + 576081 = 1530^2 + 759^2 .

It is not a de Polignac number, because 2916981 - 2²¹ = 819829 is a prime.

It is a super-2 number, since 2×2916981² = 17017556308722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2916931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 696 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (354705).

2^2916981 is an apocalyptic number.

It is an amenable number.

2916981 is a deficient number, since it is larger than the sum of its proper divisors (1339479).

2916981 is a wasteful number, since it uses less digits than its factorization.

2916981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316 (or 3313 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 2916981 is about 1707.9171525575. The cubic root of 2916981 is about 142.8821138730.

The spelling of 2916981 in words is "two million, nine hundred sixteen thousand, nine hundred eighty-one".