It is a sphenic number, since it is the product of 3 distinct primes.
It is an alternating number because its digits alternate between even and odd.
It is a congruent number.
It is an unprimeable number.
61894 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
261894 is an apocalyptic number.
61894 is a wasteful number, since it uses less digits than its factorization.
61894 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4430.
The square root of 61894 is about 248.7850477822. The cubic root of 61894 is about 39.5563475039.
The spelling of 61894 in words is "sixty-one thousand, eight hundred ninety-four".