61380712 has 8 divisors (see below), whose sum is σ = 115088850. Its totient is φ = 30690352.

The previous prime is 61380703. The next prime is 61380749. The reversal of 61380712 is 21708316.

It can be written as a sum of positive squares in only one way, i.e., 57972996 + 3407716 = 7614^2 + 1846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 3836287 + ... + 3836302.

Almost surely, 2^61380712 is an apocalyptic number.

It is an amenable number.

61380712 is a deficient number, since it is larger than the sum of its proper divisors (53708138).

61380712 is a wasteful number, since it uses less digits than its factorization.

61380712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7672595 (or 7672591 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 61380712 is about 7834.5843540037. The cubic root of 61380712 is about 394.4669667553.

The spelling of 61380712 in words is "sixty-one million, three hundred eighty thousand, seven hundred twelve".