196628461 has 2 divisors, whose sum is σ = 196628462. Its totient is φ = 196628460.

The previous prime is 196628459. The next prime is 196628483. The reversal of 196628461 is 164826691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196532361 + 96100 = 14019^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 196628461 - 2¹ = 196628459 is a prime.

Together with 196628459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196628431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98314230 + 98314231.

It is an arithmetic number, because the mean of its divisors is an integer number (98314231).

Almost surely, 2^196628461 is an apocalyptic number.

It is an amenable number.

196628461 is a deficient number, since it is larger than the sum of its proper divisors (1).

196628461 is an equidigital number, since it uses as much as digits as its factorization.

196628461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 196628461 is about 14022.4270723723. The cubic root of 196628461 is about 581.4987605042.

The spelling of 196628461 in words is "one hundred ninety-six million, six hundred twenty-eight thousand, four hundred sixty-one".