196740649 has 8 divisors (see below), whose sum is σ = 236680640. Its totient is φ = 159759216.

The previous prime is 196740623. The next prime is 196740671. The reversal of 196740649 is 946047691.

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 196740649 - 2⁷ = 196740521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196740599 and 196740608.

It is not an unprimeable number, because it can be changed into a prime (196743649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739494 + ... + 739759.

It is an arithmetic number, because the mean of its divisors is an integer number (29585080).

Almost surely, 2^196740649 is an apocalyptic number.

196740649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

196740649 is a deficient number, since it is larger than the sum of its proper divisors (39939991).

196740649 is a wasteful number, since it uses less digits than its factorization.

196740649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479279.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 196740649 is about 14026.4268079935. The cubic root of 196740649 is about 581.6093324586.

The spelling of 196740649 in words is "one hundred ninety-six million, seven hundred forty thousand, six hundred forty-nine".