61685041 has 4 divisors (see below), whose sum is σ = 67292784. Its totient is φ = 56077300.

The previous prime is 61685023. The next prime is 61685051. The reversal of 61685041 is 14058616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61685041 - 2⁹ = 61684529 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61684994 and 61685012.

It is not an unprimeable number, because it can be changed into a prime (61685051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803855 + ... + 2803876.

It is an arithmetic number, because the mean of its divisors is an integer number (16823196).

Almost surely, 2^61685041 is an apocalyptic number.

It is an amenable number.

61685041 is a deficient number, since it is larger than the sum of its proper divisors (5607743).

61685041 is a wasteful number, since it uses less digits than its factorization.

61685041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607742.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 61685041 is about 7853.9824929777. The cubic root of 61685041 is about 395.1178220331.

The spelling of 61685041 in words is "sixty-one million, six hundred eighty-five thousand, forty-one".