3016861 has 4 divisors (see below), whose sum is σ = 3059424. Its totient is φ = 2974300.

The previous prime is 3016859. The next prime is 3016879. The reversal of 3016861 is 1686103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1686103 = 223 ⋅7561.

It is a cyclic number.

It is not a de Polignac number, because 3016861 - 2¹ = 3016859 is a prime.

It is a Duffinian number.

3016861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3016061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21175 + ... + 21316.

It is an arithmetic number, because the mean of its divisors is an integer number (764856).

Almost surely, 2^3016861 is an apocalyptic number.

It is an amenable number.

3016861 is a deficient number, since it is larger than the sum of its proper divisors (42563).

3016861 is an equidigital number, since it uses as much as digits as its factorization.

3016861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42562.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3016861 is about 1736.9113391305. The cubic root of 3016861 is about 144.4946498500.

The spelling of 3016861 in words is "three million, sixteen thousand, eight hundred sixty-one".