61205764 has 12 divisors (see below), whose sum is σ = 112747600. Its totient is φ = 28992168.

The previous prime is 61205741. The next prime is 61205779. The reversal of 61205764 is 46750216.

It is a happy number.

61205764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61205764² = 7492291093647392, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 402594 + ... + 402745.

Almost surely, 2^61205764 is an apocalyptic number.

It is an amenable number.

61205764 is a deficient number, since it is larger than the sum of its proper divisors (51541836).

61205764 is a wasteful number, since it uses less digits than its factorization.

61205764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805362 (or 805360 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 61205764 is about 7823.4112764190. The cubic root of 61205764 is about 394.0918387269.

The spelling of 61205764 in words is "sixty-one million, two hundred five thousand, seven hundred sixty-four".