196466647 has 4 divisors (see below), whose sum is σ = 211579480. Its totient is φ = 181353816.

The previous prime is 196466573. The next prime is 196466681. The reversal of 196466647 is 746664691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746664691 = 1583 ⋅471677.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196466647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196466647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196466147) 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, 7556397 + ... + 7556422.

It is an arithmetic number, because the mean of its divisors is an integer number (52894870).

Almost surely, 2^196466647 is an apocalyptic number.

196466647 is a deficient number, since it is larger than the sum of its proper divisors (15112833).

196466647 is a wasteful number, since it uses less digits than its factorization.

196466647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15112832.

The product of its digits is 1306368, while the sum is 49.

The square root of 196466647 is about 14016.6560562782. The cubic root of 196466647 is about 581.3392032979.

The spelling of 196466647 in words is "one hundred ninety-six million, four hundred sixty-six thousand, six hundred forty-seven".