61028579 has 2 divisors, whose sum is σ = 61028580. Its totient is φ = 61028578.

The previous prime is 61028573. The next prime is 61028603. The reversal of 61028579 is 97582016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61028579 - 2¹⁶ = 60963043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61028573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30514289 + 30514290.

It is an arithmetic number, because the mean of its divisors is an integer number (30514290).

Almost surely, 2^61028579 is an apocalyptic number.

61028579 is a deficient number, since it is larger than the sum of its proper divisors (1).

61028579 is an equidigital number, since it uses as much as digits as its factorization.

61028579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 61028579 is about 7812.0790446590. The cubic root of 61028579 is about 393.7111847519.

The spelling of 61028579 in words is "sixty-one million, twenty-eight thousand, five hundred seventy-nine".