61894217 has 16 divisors (see below), whose sum is σ = 77610624. Its totient is φ = 47952000.

The previous prime is 61894211. The next prime is 61894237. The reversal of 61894217 is 71249816.

61894217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61894217 - 2¹⁴ = 61877833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61894211) 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 15 ways as a sum of consecutive naturals, for example, 11717 + ... + 16157.

It is an arithmetic number, because the mean of its divisors is an integer number (4850664).

Almost surely, 2^61894217 is an apocalyptic number.

It is an amenable number.

61894217 is a deficient number, since it is larger than the sum of its proper divisors (15716407).

61894217 is a wasteful number, since it uses less digits than its factorization.

61894217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640.

The product of its digits is 24192, while the sum is 38.

The square root of 61894217 is about 7867.2877791524. The cubic root of 61894217 is about 395.5639373192.

The spelling of 61894217 in words is "sixty-one million, eight hundred ninety-four thousand, two hundred seventeen".