197287794 has 24 divisors (see below), whose sum is σ = 466317072. Its totient is φ = 59784120.

The previous prime is 197287793. The next prime is 197287819. The reversal of 197287794 is 497782791.

It is a super-2 number, since 2×197287794² = 77844947322772872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 197287794.

It is not an unprimeable number, because it can be changed into a prime (197287793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498004 + ... + 498399.

It is an arithmetic number, because the mean of its divisors is an integer number (19429878).

Almost surely, 2^197287794 is an apocalyptic number.

197287794 is an abundant number, since it is smaller than the sum of its proper divisors (269029278).

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

197287794 is a wasteful number, since it uses less digits than its factorization.

197287794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996422 (or 996419 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The square root of 197287794 is about 14045.9173427726. The cubic root of 197287794 is about 582.1479943900.

The spelling of 197287794 in words is "one hundred ninety-seven million, two hundred eighty-seven thousand, seven hundred ninety-four".