61881296 has 20 divisors (see below), whose sum is σ = 120425700. Its totient is φ = 30803712.

The previous prime is 61881283. The next prime is 61881311. The reversal of 61881296 is 69218816.

61881296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28472896 + 33408400 = 5336^2 + 5780^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4781 + ... + 12108.

It is an arithmetic number, because the mean of its divisors is an integer number (6021285).

Almost surely, 2^61881296 is an apocalyptic number.

It is an amenable number.

61881296 is a deficient number, since it is larger than the sum of its proper divisors (58544404).

61881296 is a wasteful number, since it uses less digits than its factorization.

61881296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17126 (or 17120 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 61881296 is about 7866.4665511270. The cubic root of 61881296 is about 395.5364095059.

The spelling of 61881296 in words is "sixty-one million, eight hundred eighty-one thousand, two hundred ninety-six".