7613861 has 4 divisors (see below), whose sum is σ = 7699500. Its totient is φ = 7528224.

The previous prime is 7613849. The next prime is 7613867. The reversal of 7613861 is 1683167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1683167 = 37 ⋅45491.

It can be written as a sum of positive squares in 2 ways, for example, as 591361 + 7022500 = 769^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 7613861 - 2⁶ = 7613797 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 (7613867) 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, 42686 + ... + 42863.

It is an arithmetic number, because the mean of its divisors is an integer number (1924875).

Almost surely, 2^7613861 is an apocalyptic number.

It is an amenable number.

7613861 is a deficient number, since it is larger than the sum of its proper divisors (85639).

7613861 is an equidigital number, since it uses as much as digits as its factorization.

7613861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85638.

The product of its digits is 6048, while the sum is 32.

The square root of 7613861 is about 2759.3225617894. The cubic root of 7613861 is about 196.7289684194.

The spelling of 7613861 in words is "seven million, six hundred thirteen thousand, eight hundred sixty-one".