61023728 has 10 divisors (see below), whose sum is σ = 118233504. Its totient is φ = 30511856.

The previous prime is 61023709. The next prime is 61023731. The reversal of 61023728 is 82732016.

It is a happy number.

61023728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61023728.

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 as a sum of consecutive naturals, namely, 1906976 + ... + 1907007.

Almost surely, 2^61023728 is an apocalyptic number.

It is an amenable number.

61023728 is a deficient number, since it is larger than the sum of its proper divisors (57209776).

61023728 is a wasteful number, since it uses less digits than its factorization.

61023728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813991 (or 3813985 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61023728 is about 7811.7685577595. The cubic root of 61023728 is about 393.7007527893.

The spelling of 61023728 in words is "sixty-one million, twenty-three thousand, seven hundred twenty-eight".