198885477 has 16 divisors (see below), whose sum is σ = 304883712. Its totient is φ = 112966320.

The previous prime is 198885469. The next prime is 198885539. The reversal of 198885477 is 774588891.

198885477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198885477 - 2³ = 198885469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198885377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24849 + ... + 31862.

It is an arithmetic number, because the mean of its divisors is an integer number (19055232).

Almost surely, 2^198885477 is an apocalyptic number.

It is an amenable number.

198885477 is a deficient number, since it is larger than the sum of its proper divisors (105998235).

198885477 is a wasteful number, since it uses less digits than its factorization.

198885477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56888.

The product of its digits is 4515840, while the sum is 57.

The square root of 198885477 is about 14102.6762353817. The cubic root of 198885477 is about 583.7152285304.

The spelling of 198885477 in words is "one hundred ninety-eight million, eight hundred eighty-five thousand, four hundred seventy-seven".