61844961 has 4 divisors (see below), whose sum is σ = 82459952. Its totient is φ = 41229972.

The previous prime is 61844947. The next prime is 61844989. The reversal of 61844961 is 16944816.

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 61844961 - 2⁷ = 61844833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61844161) 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, 10307491 + ... + 10307496.

It is an arithmetic number, because the mean of its divisors is an integer number (20614988).

Almost surely, 2^61844961 is an apocalyptic number.

It is an amenable number.

61844961 is a deficient number, since it is larger than the sum of its proper divisors (20614991).

61844961 is a wasteful number, since it uses less digits than its factorization.

61844961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20614990.

The product of its digits is 41472, while the sum is 39.

The square root of 61844961 is about 7864.1567252948. The cubic root of 61844961 is about 395.4589783046.

The spelling of 61844961 in words is "sixty-one million, eight hundred forty-four thousand, nine hundred sixty-one".