61293928 has 8 divisors (see below), whose sum is σ = 114926130. Its totient is φ = 30646960.

The previous prime is 61293901. The next prime is 61293977. The reversal of 61293928 is 82939216.

It is a happy number.

61293928 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 only one way, i.e., 49308484 + 11985444 = 7022^2 + 3462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 3830863 + ... + 3830878.

Almost surely, 2^61293928 is an apocalyptic number.

It is an amenable number.

61293928 is a deficient number, since it is larger than the sum of its proper divisors (53632202).

61293928 is a wasteful number, since it uses less digits than its factorization.

61293928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661747 (or 7661743 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 61293928 is about 7829.0438752123. The cubic root of 61293928 is about 394.2809714775.

The spelling of 61293928 in words is "sixty-one million, two hundred ninety-three thousand, nine hundred twenty-eight".