61882613 has 4 divisors (see below), whose sum is σ = 66642828. Its totient is φ = 57122400.

The previous prime is 61882573. The next prime is 61882651. The reversal of 61882613 is 31628816.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16630084 + 45252529 = 4078^2 + 6727^2 .

It is a cyclic number.

It is not a de Polignac number, because 61882613 - 2⁸ = 61882357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61882013) 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, 2380088 + ... + 2380113.

It is an arithmetic number, because the mean of its divisors is an integer number (16660707).

Almost surely, 2^61882613 is an apocalyptic number.

It is an amenable number.

61882613 is a deficient number, since it is larger than the sum of its proper divisors (4760215).

61882613 is a wasteful number, since it uses less digits than its factorization.

61882613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760214.

The product of its digits is 13824, while the sum is 35.

The square root of 61882613 is about 7866.5502604382. The cubic root of 61882613 is about 395.5392155114.

The spelling of 61882613 in words is "sixty-one million, eight hundred eighty-two thousand, six hundred thirteen".