194720885 has 8 divisors (see below), whose sum is σ = 233773440. Its totient is φ = 155704464.

The previous prime is 194720879. The next prime is 194720893. The reversal of 194720885 is 588027491.

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

It is a cyclic number.

It is not a de Polignac number, because 194720885 - 2⁸ = 194720629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4736 + ... + 20294.

It is an arithmetic number, because the mean of its divisors is an integer number (29221680).

Almost surely, 2^194720885 is an apocalyptic number.

It is an amenable number.

194720885 is a deficient number, since it is larger than the sum of its proper divisors (39052555).

194720885 is a wasteful number, since it uses less digits than its factorization.

194720885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18067.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 194720885 is about 13954.2425448320. The cubic root of 194720885 is about 579.6121912107.

The spelling of 194720885 in words is "one hundred ninety-four million, seven hundred twenty thousand, eight hundred eighty-five".