197416813 has 8 divisors (see below), whose sum is σ = 218090880. Its totient is φ = 177197280.

The previous prime is 197416811. The next prime is 197416829. The reversal of 197416813 is 318614791.

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

It is a cyclic number.

It is not a de Polignac number, because 197416813 - 2¹ = 197416811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197416811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112720 + ... + 114457.

It is an arithmetic number, because the mean of its divisors is an integer number (27261360).

Almost surely, 2^197416813 is an apocalyptic number.

It is an amenable number.

197416813 is a deficient number, since it is larger than the sum of its proper divisors (20674067).

197416813 is a wasteful number, since it uses less digits than its factorization.

197416813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227267.

The product of its digits is 36288, while the sum is 40.

The square root of 197416813 is about 14050.5093501979. The cubic root of 197416813 is about 582.2748679011.

The spelling of 197416813 in words is "one hundred ninety-seven million, four hundred sixteen thousand, eight hundred thirteen".