61275764 has 12 divisors (see below), whose sum is σ = 116981088. Its totient is φ = 27852600.

The previous prime is 61275761. The next prime is 61275793. The reversal of 61275764 is 46757216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61275761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696272 + ... + 696359.

It is an arithmetic number, because the mean of its divisors is an integer number (9748424).

Almost surely, 2^61275764 is an apocalyptic number.

It is an amenable number.

61275764 is a deficient number, since it is larger than the sum of its proper divisors (55705324).

61275764 is a wasteful number, since it uses less digits than its factorization.

61275764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392646 (or 1392644 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 61275764 is about 7827.8837497755. The cubic root of 61275764 is about 394.2420202178.

The spelling of 61275764 in words is "sixty-one million, two hundred seventy-five thousand, seven hundred sixty-four".