7871461 has 4 divisors (see below), whose sum is σ = 8476972. Its totient is φ = 7265952.

The previous prime is 7871449. The next prime is 7871473. The reversal of 7871461 is 1641787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1641787 = 7 ⋅234541.

It is an interprime number because it is at equal distance from previous prime (7871449) and next prime (7871473).

It can be written as a sum of positive squares in 2 ways, for example, as 1716100 + 6155361 = 1310^2 + 2481^2 .

It is a cyclic number.

It is not a de Polignac number, because 7871461 - 2⁵ = 7871429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7871411) 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, 302736 + ... + 302761.

It is an arithmetic number, because the mean of its divisors is an integer number (2119243).

Almost surely, 2^7871461 is an apocalyptic number.

It is an amenable number.

7871461 is a deficient number, since it is larger than the sum of its proper divisors (605511).

7871461 is a wasteful number, since it uses less digits than its factorization.

7871461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605510.

The product of its digits is 9408, while the sum is 34.

The square root of 7871461 is about 2805.6124108651. The cubic root of 7871461 is about 198.9230530013.

The spelling of 7871461 in words is "seven million, eight hundred seventy-one thousand, four hundred sixty-one".