61985361 has 8 divisors (see below), whose sum is σ = 82739104. Its totient is φ = 41277600.

The previous prime is 61985347. The next prime is 61985369. The reversal of 61985361 is 16358916.

61985361 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 not a de Polignac number, because 61985361 - 2⁷ = 61985233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61985369) 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, 8215 + ... + 13836.

It is an arithmetic number, because the mean of its divisors is an integer number (10342388).

Almost surely, 2^61985361 is an apocalyptic number.

It is an amenable number.

61985361 is a deficient number, since it is larger than the sum of its proper divisors (20753743).

61985361 is a wasteful number, since it uses less digits than its factorization.

61985361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22991.

The product of its digits is 38880, while the sum is 39.

The square root of 61985361 is about 7873.0782417044. The cubic root of 61985361 is about 395.7580082068.

The spelling of 61985361 in words is "sixty-one million, nine hundred eighty-five thousand, three hundred sixty-one".