196549807 has 2 divisors, whose sum is σ = 196549808. Its totient is φ = 196549806.

The previous prime is 196549783. The next prime is 196549819. The reversal of 196549807 is 708945691.

It is a strong prime.

It is an emirp because it is prime and its reverse (708945691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196549807 - 2²⁷ = 62332079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196549897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98274903 + 98274904.

It is an arithmetic number, because the mean of its divisors is an integer number (98274904).

Almost surely, 2^196549807 is an apocalyptic number.

196549807 is a deficient number, since it is larger than the sum of its proper divisors (1).

196549807 is an equidigital number, since it uses as much as digits as its factorization.

196549807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 196549807 is about 14019.6222131697. The cubic root of 196549807 is about 581.4212144170.

The spelling of 196549807 in words is "one hundred ninety-six million, five hundred forty-nine thousand, eight hundred seven".