197902068 has 96 divisors (see below), whose sum is σ = 573210624. Its totient is φ = 51746688.

The previous prime is 197902027. The next prime is 197902069. The reversal of 197902068 is 860209791.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197902069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137971 + ... + 139397.

It is an arithmetic number, because the mean of its divisors is an integer number (5970944).

Almost surely, 2^197902068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197902068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286605312).

197902068 is an abundant number, since it is smaller than the sum of its proper divisors (375308556).

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

197902068 is a wasteful number, since it uses less digits than its factorization.

197902068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 197902068 is about 14067.7669869813. The cubic root of 197902068 is about 582.7515591483.

The spelling of 197902068 in words is "one hundred ninety-seven million, nine hundred two thousand, sixty-eight".