2861613 has 6 divisors (see below), whose sum is σ = 4133454. Its totient is φ = 1907736.

The previous prime is 2861603. The next prime is 2861623. The reversal of 2861613 is 3161682.

It is an interprime number because it is at equal distance from previous prime (2861603) and next prime (2861623).

It can be written as a sum of positive squares in only one way, i.e., 2812329 + 49284 = 1677^2 + 222^2 .

It is not a de Polignac number, because 2861613 - 2⁶ = 2861549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158970 + ... + 158987.

It is an arithmetic number, because the mean of its divisors is an integer number (688909).

2^2861613 is an apocalyptic number.

It is an amenable number.

2861613 is a deficient number, since it is larger than the sum of its proper divisors (1271841).

2861613 is a wasteful number, since it uses less digits than its factorization.

2861613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317963 (or 317960 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2861613 is about 1691.6302787548. The cubic root of 2861613 is about 141.9723049870.

The spelling of 2861613 in words is "two million, eight hundred sixty-one thousand, six hundred thirteen".