197984755 has 8 divisors (see below), whose sum is σ = 245245824. Its totient is φ = 153278400.

The previous prime is 197984753. The next prime is 197984783. The reversal of 197984755 is 557489791.

It is a happy number.

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

It is not a de Polignac number, because 197984755 - 2¹ = 197984753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197984696 and 197984705.

It is not an unprimeable number, because it can be changed into a prime (197984753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638506 + ... + 638815.

It is an arithmetic number, because the mean of its divisors is an integer number (30655728).

Almost surely, 2^197984755 is an apocalyptic number.

197984755 is a deficient number, since it is larger than the sum of its proper divisors (47261069).

197984755 is a wasteful number, since it uses less digits than its factorization.

197984755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277357.

The product of its digits is 3175200, while the sum is 55.

The square root of 197984755 is about 14070.7055615559. The cubic root of 197984755 is about 582.8327091656.

The spelling of 197984755 in words is "one hundred ninety-seven million, nine hundred eighty-four thousand, seven hundred fifty-five".