61985793 has 8 divisors (see below), whose sum is σ = 83406400. Its totient is φ = 40944528.

The previous prime is 61985783. The next prime is 61985801. The reversal of 61985793 is 39758916.

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

It is not a de Polignac number, because 61985793 - 2⁵ = 61985761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61985783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94453 + ... + 95106.

It is an arithmetic number, because the mean of its divisors is an integer number (10425800).

Almost surely, 2^61985793 is an apocalyptic number.

It is an amenable number.

61985793 is a deficient number, since it is larger than the sum of its proper divisors (21420607).

61985793 is a wasteful number, since it uses less digits than its factorization.

61985793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189671.

The product of its digits is 408240, while the sum is 48.

The square root of 61985793 is about 7873.1056769232. The cubic root of 61985793 is about 395.7589276016.

The spelling of 61985793 in words is "sixty-one million, nine hundred eighty-five thousand, seven hundred ninety-three".