61944443 has 8 divisors (see below), whose sum is σ = 67635120. Its totient is φ = 56263680.

The previous prime is 61944431. The next prime is 61944457. The reversal of 61944443 is 34444916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61944443 - 2¹⁰ = 61943419 is a prime.

It is a super-2 number, since 2×61944443² = 7674228037160498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61944403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17963 + ... + 21131.

It is an arithmetic number, because the mean of its divisors is an integer number (8454390).

Almost surely, 2^61944443 is an apocalyptic number.

61944443 is a deficient number, since it is larger than the sum of its proper divisors (5690677).

61944443 is a wasteful number, since it uses less digits than its factorization.

61944443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957.

The product of its digits is 41472, while the sum is 35.

The square root of 61944443 is about 7870.4792103150. The cubic root of 61944443 is about 395.6709059701.

The spelling of 61944443 in words is "sixty-one million, nine hundred forty-four thousand, four hundred forty-three".