197985416 has 32 divisors (see below), whose sum is σ = 381120960. Its totient is φ = 96368832.

The previous prime is 197985401. The next prime is 197985419. The reversal of 197985416 is 614589791.

197985416 = T₃₂₃ + T₃₂₄ + ... + T₁₀₆₈.

It is not an unprimeable number, because it can be changed into a prime (197985419) 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 7 ways as a sum of consecutive naturals, for example, 127541 + ... + 129083.

It is an arithmetic number, because the mean of its divisors is an integer number (11910030).

Almost surely, 2^197985416 is an apocalyptic number.

It is an amenable number.

197985416 is a deficient number, since it is larger than the sum of its proper divisors (183135544).

197985416 is a wasteful number, since it uses less digits than its factorization.

197985416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965 (or 1961 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 197985416 is about 14070.7290500528. The cubic root of 197985416 is about 582.8333577879.

The spelling of 197985416 in words is "one hundred ninety-seven million, nine hundred eighty-five thousand, four hundred sixteen".