2470861 has 4 divisors (see below), whose sum is σ = 2512800. Its totient is φ = 2428924.

The previous prime is 2470859. The next prime is 2470877. The reversal of 2470861 is 1680742.

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.

It is a cyclic number.

It is not a de Polignac number, because 2470861 - 2¹ = 2470859 is a prime.

It is a super-2 number, since 2×2470861² = 12210308162642, which contains 22 as substring.

It is a Duffinian number.

2470861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2470801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20881 + ... + 20998.

It is an arithmetic number, because the mean of its divisors is an integer number (628200).

2^2470861 is an apocalyptic number.

It is an amenable number.

2470861 is a deficient number, since it is larger than the sum of its proper divisors (41939).

2470861 is an equidigital number, since it uses as much as digits as its factorization.

2470861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41938.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2470861 is about 1571.8972612738. The cubic root of 2470861 is about 135.1915160170.

The spelling of 2470861 in words is "two million, four hundred seventy thousand, eight hundred sixty-one".