61893785 has 8 divisors (see below), whose sum is σ = 76280136. Its totient is φ = 48176640.

The previous prime is 61893779. The next prime is 61893809. The reversal of 61893785 is 58739816.

It is a happy number.

61893785 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 4 ways, for example, as 5583769 + 56310016 = 2363^2 + 7504^2 .

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

It is not a de Polignac number, because 61893785 - 2¹⁴ = 61877401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 167096 + ... + 167465.

It is an arithmetic number, because the mean of its divisors is an integer number (9535017).

Almost surely, 2^61893785 is an apocalyptic number.

It is an amenable number.

61893785 is a deficient number, since it is larger than the sum of its proper divisors (14386351).

61893785 is a wasteful number, since it uses less digits than its factorization.

61893785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334603.

The product of its digits is 362880, while the sum is 47.

The square root of 61893785 is about 7867.2603236451. The cubic root of 61893785 is about 395.5630170177.

The spelling of 61893785 in words is "sixty-one million, eight hundred ninety-three thousand, seven hundred eighty-five".