197265478 has 8 divisors (see below), whose sum is σ = 298058472. Its totient is φ = 97912656.

The previous prime is 197265469. The next prime is 197265479. The reversal of 197265478 is 874562791.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197265479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359700 + ... + 360247.

It is an arithmetic number, because the mean of its divisors is an integer number (37257309).

Almost surely, 2^197265478 is an apocalyptic number.

197265478 is a deficient number, since it is larger than the sum of its proper divisors (100792994).

197265478 is a wasteful number, since it uses less digits than its factorization.

197265478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720086.

The product of its digits is 846720, while the sum is 49.

The square root of 197265478 is about 14045.1229257704. The cubic root of 197265478 is about 582.1260438776.

The spelling of 197265478 in words is "one hundred ninety-seven million, two hundred sixty-five thousand, four hundred seventy-eight".