61396628 has 12 divisors (see below), whose sum is σ = 107582580. Its totient is φ = 30658752.

The previous prime is 61396613. The next prime is 61396633. The reversal of 61396628 is 82669316.

61396628 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 39287824 + 22108804 = 6268^2 + 4702^2 .

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, 6251 + ... + 12722.

It is an arithmetic number, because the mean of its divisors is an integer number (8965215).

Almost surely, 2^61396628 is an apocalyptic number.

It is an amenable number.

61396628 is a deficient number, since it is larger than the sum of its proper divisors (46185952).

61396628 is a wasteful number, since it uses less digits than its factorization.

61396628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19786 (or 19784 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 61396628 is about 7835.6000408392. The cubic root of 61396628 is about 394.5010588637.

The spelling of 61396628 in words is "sixty-one million, three hundred ninety-six thousand, six hundred twenty-eight".