61844061 has 4 divisors (see below), whose sum is σ = 82458752. Its totient is φ = 41229372.

The previous prime is 61844059. The next prime is 61844077. The reversal of 61844061 is 16044816.

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 not a de Polignac number, because 61844061 - 2¹ = 61844059 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 (61844021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10307341 + ... + 10307346.

It is an arithmetic number, because the mean of its divisors is an integer number (20614688).

Almost surely, 2^61844061 is an apocalyptic number.

It is an amenable number.

61844061 is a deficient number, since it is larger than the sum of its proper divisors (20614691).

61844061 is a wasteful number, since it uses less digits than its factorization.

61844061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20614690.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 61844061 is about 7864.0995034397. The cubic root of 61844061 is about 395.4570599871.

Adding to 61844061 its reverse (16044816), we get a palindrome (77888877).

The spelling of 61844061 in words is "sixty-one million, eight hundred forty-four thousand, sixty-one".