61444463 has 8 divisors (see below), whose sum is σ = 64213248. Its totient is φ = 58736664.

The previous prime is 61444447. The next prime is 61444469. The reversal of 61444463 is 36444416.

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

It is a cyclic number.

It is not a de Polignac number, because 61444463 - 2⁴ = 61444447 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 (61444469) 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, 13181 + ... + 17222.

It is an arithmetic number, because the mean of its divisors is an integer number (8026656).

Almost surely, 2^61444463 is an apocalyptic number.

61444463 is a deficient number, since it is larger than the sum of its proper divisors (2768785).

61444463 is a wasteful number, since it uses less digits than its factorization.

61444463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30493.

The product of its digits is 27648, while the sum is 32.

The square root of 61444463 is about 7838.6518611302. The cubic root of 61444463 is about 394.6034860925.

Adding to 61444463 its reverse (36444416), we get a palindrome (97888879).

The spelling of 61444463 in words is "sixty-one million, four hundred forty-four thousand, four hundred sixty-three".