198052477 has 4 divisors (see below), whose sum is σ = 226345696. Its totient is φ = 169759260.

The previous prime is 198052457. The next prime is 198052483. The reversal of 198052477 is 774250891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198052477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198052457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14146599 + ... + 14146612.

It is an arithmetic number, because the mean of its divisors is an integer number (56586424).

Almost surely, 2^198052477 is an apocalyptic number.

It is an amenable number.

198052477 is a deficient number, since it is larger than the sum of its proper divisors (28293219).

198052477 is an equidigital number, since it uses as much as digits as its factorization.

198052477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28293218.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 198052477 is about 14073.1118449332. Note that the first 3 decimals coincide. The cubic root of 198052477 is about 582.8991555227.

The spelling of 198052477 in words is "one hundred ninety-eight million, fifty-two thousand, four hundred seventy-seven".