61221796 has 24 divisors (see below), whose sum is σ = 110242944. Its totient is φ = 29736480.

The previous prime is 61221793. The next prime is 61221799. The reversal of 61221796 is 69712216.

61221796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61221793) and next prime (61221799).

It is not an unprimeable number, because it can be changed into a prime (61221793) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18741 + ... + 21763.

It is an arithmetic number, because the mean of its divisors is an integer number (4593456).

Almost surely, 2^61221796 is an apocalyptic number.

It is an amenable number.

61221796 is a deficient number, since it is larger than the sum of its proper divisors (49021148).

61221796 is a wasteful number, since it uses less digits than its factorization.

61221796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171 (or 3169 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 61221796 is about 7824.4358263072. The cubic root of 61221796 is about 394.1262446847.

The spelling of 61221796 in words is "sixty-one million, two hundred twenty-one thousand, seven hundred ninety-six".