997671195 has 32 divisors (see below), whose sum is σ = 1834804800. Its totient is φ = 513741312.

The previous prime is 997671187. The next prime is 997671211. The reversal of 997671195 is 591176799.

It is a happy number.

It is not a de Polignac number, because 997671195 - 2³ = 997671187 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 123502 + ... + 131331.

It is an arithmetic number, because the mean of its divisors is an integer number (57337650).

Almost surely, 2^997671195 is an apocalyptic number.

997671195 is a deficient number, since it is larger than the sum of its proper divisors (837133605).

997671195 is a wasteful number, since it uses less digits than its factorization.

997671195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254876 (or 254870 counting only the distinct ones).

The product of its digits is 1071630, while the sum is 54.

The square root of 997671195 is about 31585.9334989485. The cubic root of 997671195 is about 999.2231282933.

The spelling of 997671195 in words is "nine hundred ninety-seven million, six hundred seventy-one thousand, one hundred ninety-five".