197902943 has 8 divisors (see below), whose sum is σ = 226439712. Its totient is φ = 169432416.

The previous prime is 197902897. The next prime is 197902987. The reversal of 197902943 is 349209791.

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

It is a cyclic number.

It is not a de Polignac number, because 197902943 - 2²⁰ = 196854367 is a prime.

It is a super-2 number, since 2×197902943² = 78331149696122498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197902894 and 197902903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197902643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9980 + ... + 22257.

It is an arithmetic number, because the mean of its divisors is an integer number (28304964).

Almost surely, 2^197902943 is an apocalyptic number.

197902943 is a deficient number, since it is larger than the sum of its proper divisors (28536769).

197902943 is an equidigital number, since it uses as much as digits as its factorization.

197902943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33121.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 197902943 is about 14067.7980864100. The cubic root of 197902943 is about 582.7524180021.

The spelling of 197902943 in words is "one hundred ninety-seven million, nine hundred two thousand, nine hundred forty-three".