61746705 has 20 divisors (see below), whose sum is σ = 110687412. Its totient is φ = 32931360.

The previous prime is 61746689. The next prime is 61746709. The reversal of 61746705 is 50764716.

61746705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46908801 + 14837904 = 6849^2 + 3852^2 .

It is not a de Polignac number, because 61746705 - 2⁴ = 61746689 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61746705.

It is not an unprimeable number, because it can be changed into a prime (61746709) 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 19 ways as a sum of consecutive naturals, for example, 75826 + ... + 76635.

Almost surely, 2^61746705 is an apocalyptic number.

It is an amenable number.

61746705 is a deficient number, since it is larger than the sum of its proper divisors (48940707).

61746705 is a wasteful number, since it uses less digits than its factorization.

61746705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152478 (or 152469 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 61746705 is about 7857.9071641246. The cubic root of 61746705 is about 395.2494392007.

The spelling of 61746705 in words is "sixty-one million, seven hundred forty-six thousand, seven hundred five".