196564429 has 2 divisors, whose sum is σ = 196564430. Its totient is φ = 196564428.

The previous prime is 196564427. The next prime is 196564441. The reversal of 196564429 is 924465691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163788804 + 32775625 = 12798^2 + 5725^2 .

It is a cyclic number.

It is not a de Polignac number, because 196564429 - 2¹ = 196564427 is a prime.

Together with 196564427, 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 (196564427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98282214 + 98282215.

It is an arithmetic number, because the mean of its divisors is an integer number (98282215).

Almost surely, 2^196564429 is an apocalyptic number.

It is an amenable number.

196564429 is a deficient number, since it is larger than the sum of its proper divisors (1).

196564429 is an equidigital number, since it uses as much as digits as its factorization.

196564429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 196564429 is about 14020.1436868529. The cubic root of 196564429 is about 581.4356320182.

The spelling of 196564429 in words is "one hundred ninety-six million, five hundred sixty-four thousand, four hundred twenty-nine".