2946681 has 6 divisors (see below), whose sum is σ = 4256330. Its totient is φ = 1964448.

The previous prime is 2946679. The next prime is 2946683. The reversal of 2946681 is 1866492.

It is an interprime number because it is at equal distance from previous prime (2946679) and next prime (2946683).

It can be written as a sum of positive squares in only one way, i.e., 2944656 + 2025 = 1716^2 + 45^2 .

It is not a de Polignac number, because 2946681 - 2¹ = 2946679 is a prime.

It is a super-2 number, since 2×2946681² = 17365857831522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2946683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163696 + ... + 163713.

2^2946681 is an apocalyptic number.

It is an amenable number.

2946681 is a deficient number, since it is larger than the sum of its proper divisors (1309649).

2946681 is a wasteful number, since it uses less digits than its factorization.

2946681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327415 (or 327412 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2946681 is about 1716.5899335601. The cubic root of 2946681 is about 143.3654077610.

The spelling of 2946681 in words is "two million, nine hundred forty-six thousand, six hundred eighty-one".