61207617 has 8 divisors (see below), whose sum is σ = 81748800. Its totient is φ = 40735760.

The previous prime is 61207589. The next prime is 61207639. The reversal of 61207617 is 71670216.

It is a happy number.

61207617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61207617 - 2¹¹ = 61205569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61207697) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15234 + ... + 18827.

It is an arithmetic number, because the mean of its divisors is an integer number (10218600).

Almost surely, 2^61207617 is an apocalyptic number.

It is an amenable number.

61207617 is a deficient number, since it is larger than the sum of its proper divisors (20541183).

61207617 is a wasteful number, since it uses less digits than its factorization.

61207617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34663.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 61207617 is about 7823.5297021229. The cubic root of 61207617 is about 394.0958157206.

The spelling of 61207617 in words is "sixty-one million, two hundred seven thousand, six hundred seventeen".