61028578 has 8 divisors (see below), whose sum is σ = 98584668. Its totient is φ = 28167024.

The previous prime is 61028573. The next prime is 61028579. The reversal of 61028578 is 87582016.

61028578 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 59397849 + 1630729 = 7707^2 + 1277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61028573) 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 3 ways as a sum of consecutive naturals, for example, 1173601 + ... + 1173652.

Almost surely, 2^61028578 is an apocalyptic number.

61028578 is a deficient number, since it is larger than the sum of its proper divisors (37556090).

61028578 is a wasteful number, since it uses less digits than its factorization.

61028578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347268.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 61028578 is about 7812.0789806555. The cubic root of 61028578 is about 393.7111826015.

The spelling of 61028578 in words is "sixty-one million, twenty-eight thousand, five hundred seventy-eight".