2946861 has 24 divisors (see below), whose sum is σ = 4504864. Its totient is φ = 1924560.

The previous prime is 2946859. The next prime is 2946863. The reversal of 2946861 is 1686492.

It is an interprime number because it is at equal distance from previous prime (2946859) and next prime (2946863).

It is not a de Polignac number, because 2946861 - 2¹ = 2946859 is a prime.

It is a Duffinian number.

2946861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2946863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16191 + ... + 16371.

2^2946861 is an apocalyptic number.

2946861 is the 1086-th heptagonal number.

It is an amenable number.

2946861 is a deficient number, since it is larger than the sum of its proper divisors (1558003).

2946861 is an equidigital number, since it uses as much as digits as its factorization.

2946861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 251 counting only the distinct ones).

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

The square root of 2946861 is about 1716.6423622875. The cubic root of 2946861 is about 143.3683268925.

The spelling of 2946861 in words is "two million, nine hundred forty-six thousand, eight hundred sixty-one".