61077713 has 8 divisors (see below), whose sum is σ = 63590568. Its totient is φ = 58610304.

The previous prime is 61077707. The next prime is 61077721. The reversal of 61077713 is 31777016.

It can be written as a sum of positive squares in 4 ways, for example, as 20729809 + 40347904 = 4553^2 + 6352^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61077713 - 2⁴ = 61077697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61077713.

It is not an unprimeable number, because it can be changed into a prime (61077733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8606 + ... + 14007.

It is an arithmetic number, because the mean of its divisors is an integer number (7948821).

Almost surely, 2^61077713 is an apocalyptic number.

It is an amenable number.

61077713 is a deficient number, since it is larger than the sum of its proper divisors (2512855).

61077713 is a wasteful number, since it uses less digits than its factorization.

61077713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22723.

The product of its (nonzero) digits is 6174, while the sum is 32.

The square root of 61077713 is about 7815.2231574025. The cubic root of 61077713 is about 393.8168151334.

The spelling of 61077713 in words is "sixty-one million, seventy-seven thousand, seven hundred thirteen".