61944896 has 28 divisors (see below), whose sum is σ = 132379212. Its totient is φ = 28589568.

The previous prime is 61944893. The next prime is 61944901. The reversal of 61944896 is 69844916.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11022400 + 50922496 = 3320^2 + 7136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61944896.

It is not an unprimeable number, because it can be changed into a prime (61944893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36395 + ... + 38058.

It is an arithmetic number, because the mean of its divisors is an integer number (4727829).

Almost surely, 2^61944896 is an apocalyptic number.

It is an amenable number.

61944896 is an abundant number, since it is smaller than the sum of its proper divisors (70434316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61944896 is a wasteful number, since it uses less digits than its factorization.

61944896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74478 (or 74468 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 61944896 is about 7870.5079886879. The cubic root of 61944896 is about 395.6718704821.

The spelling of 61944896 in words is "sixty-one million, nine hundred forty-four thousand, eight hundred ninety-six".