197623938 has 32 divisors (see below), whose sum is σ = 400490496. Its totient is φ = 65006928.

The previous prime is 197623903. The next prime is 197623939. The reversal of 197623938 is 839326791.

It is not an unprimeable number, because it can be changed into a prime (197623939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169345 + ... + 170507.

It is an arithmetic number, because the mean of its divisors is an integer number (12515328).

Almost surely, 2^197623938 is an apocalyptic number.

197623938 is an abundant number, since it is smaller than the sum of its proper divisors (202866558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197623938 is a wasteful number, since it uses less digits than its factorization.

197623938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518.

The product of its digits is 489888, while the sum is 48.

The square root of 197623938 is about 14057.8781471458. The cubic root of 197623938 is about 582.4784330156.

The spelling of 197623938 in words is "one hundred ninety-seven million, six hundred twenty-three thousand, nine hundred thirty-eight".