61030789 has 2 divisors, whose sum is σ = 61030790. Its totient is φ = 61030788.

The previous prime is 61030787. The next prime is 61030811. The reversal of 61030789 is 98703016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54140164 + 6890625 = 7358^2 + 2625^2 .

It is a cyclic number.

It is not a de Polignac number, because 61030789 - 2¹ = 61030787 is a prime.

It is a super-3 number, since 3×61030789³ (a number of 24 digits) contains 333 as substring.

Together with 61030787, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61030787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30515394 + 30515395.

It is an arithmetic number, because the mean of its divisors is an integer number (30515395).

Almost surely, 2^61030789 is an apocalyptic number.

It is an amenable number.

61030789 is a deficient number, since it is larger than the sum of its proper divisors (1).

61030789 is an equidigital number, since it uses as much as digits as its factorization.

61030789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 61030789 is about 7812.2204910000. The cubic root of 61030789 is about 393.7159371222.

The spelling of 61030789 in words is "sixty-one million, thirty thousand, seven hundred eighty-nine".