61605707 has 8 divisors (see below), whose sum is σ = 64363680. Its totient is φ = 58854400.

The previous prime is 61605697. The next prime is 61605737. The reversal of 61605707 is 70750616.

61605707 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 61605707 - 2¹⁸ = 61343563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61605737) 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, 31457 + ... + 33357.

It is an arithmetic number, because the mean of its divisors is an integer number (8045460).

Almost surely, 2^61605707 is an apocalyptic number.

61605707 is a deficient number, since it is larger than the sum of its proper divisors (2757973).

61605707 is a wasteful number, since it uses less digits than its factorization.

61605707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 61605707 is about 7848.9303092842. The cubic root of 61605707 is about 394.9483604981.

The spelling of 61605707 in words is "sixty-one million, six hundred five thousand, seven hundred seven".