197489286 has 32 divisors (see below), whose sum is σ = 440449920. Its totient is φ = 65592072.

The previous prime is 197489263. The next prime is 197489297. The reversal of 197489286 is 682984791.

197489286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8821 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (13764060).

Almost surely, 2^197489286 is an apocalyptic number.

197489286 is an abundant number, since it is smaller than the sum of its proper divisors (242960634).

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

197489286 is a wasteful number, since it uses less digits than its factorization.

197489286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13217 (or 13211 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 197489286 is about 14053.0881303719. The cubic root of 197489286 is about 582.3461114847.

The spelling of 197489286 in words is "one hundred ninety-seven million, four hundred eighty-nine thousand, two hundred eighty-six".