197678336 has 18 divisors (see below), whose sum is σ = 394585002. Its totient is φ = 98839040.

The previous prime is 197678333. The next prime is 197678339. The reversal of 197678336 is 633876791.

It is an interprime number because it is at equal distance from previous prime (197678333) and next prime (197678339).

It can be written as a sum of positive squares in only one way, i.e., 142086400 + 55591936 = 11920^2 + 7456^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197678333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385835 + ... + 386346.

It is an arithmetic number, because the mean of its divisors is an integer number (21921389).

Almost surely, 2^197678336 is an apocalyptic number.

197678336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

197678336 is a deficient number, since it is larger than the sum of its proper divisors (196906666).

197678336 is an frugal number, since it uses more digits than its factorization.

197678336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772197 (or 772183 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 50.

The square root of 197678336 is about 14059.8128010297. The cubic root of 197678336 is about 582.5318724847.

The spelling of 197678336 in words is "one hundred ninety-seven million, six hundred seventy-eight thousand, three hundred thirty-six".