61644795 has 8 divisors (see below), whose sum is σ = 98631696. Its totient is φ = 32877216.

The previous prime is 61644763. The next prime is 61644809. The reversal of 61644795 is 59744616.

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

It is not a de Polignac number, because 61644795 - 2⁵ = 61644763 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054812 + ... + 2054841.

It is an arithmetic number, because the mean of its divisors is an integer number (12328962).

Almost surely, 2^61644795 is an apocalyptic number.

61644795 is a deficient number, since it is larger than the sum of its proper divisors (36986901).

61644795 is a wasteful number, since it uses less digits than its factorization.

61644795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109661.

The product of its digits is 181440, while the sum is 42.

The square root of 61644795 is about 7851.4199352729. The cubic root of 61644795 is about 395.0318726618.

The spelling of 61644795 in words is "sixty-one million, six hundred forty-four thousand, seven hundred ninety-five".