197046918 has 20 divisors (see below), whose sum is σ = 441531420. Its totient is φ = 65682252.

The previous prime is 197046907. The next prime is 197046919. The reversal of 197046918 is 819640791.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197046919) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 608008 + ... + 608331.

It is an arithmetic number, because the mean of its divisors is an integer number (22076571).

Almost surely, 2^197046918 is an apocalyptic number.

197046918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

197046918 is an abundant number, since it is smaller than the sum of its proper divisors (244484502).

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

197046918 is a wasteful number, since it uses less digits than its factorization.

197046918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216353 (or 1216344 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 197046918 is about 14037.3401326605. The cubic root of 197046918 is about 581.9109758615.

The spelling of 197046918 in words is "one hundred ninety-seven million, forty-six thousand, nine hundred eighteen".