61030864 has 10 divisors (see below), whose sum is σ = 118247330. Its totient is φ = 30515424.

The previous prime is 61030843. The next prime is 61030883. The reversal of 61030864 is 46803016.

It can be written as a sum of positive squares in only one way, i.e., 46131264 + 14899600 = 6792^2 + 3860^2 .

It is a congruent number.

It is an unprimeable number.

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, 1907199 + ... + 1907230.

It is an arithmetic number, because the mean of its divisors is an integer number (11824733).

Almost surely, 2^61030864 is an apocalyptic number.

It is an amenable number.

61030864 is a deficient number, since it is larger than the sum of its proper divisors (57216466).

61030864 is a wasteful number, since it uses less digits than its factorization.

61030864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814437 (or 3814431 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 61030864 is about 7812.2252911702. The cubic root of 61030864 is about 393.7160983997.

The spelling of 61030864 in words is "sixty-one million, thirty thousand, eight hundred sixty-four".