196739949 has 12 divisors (see below), whose sum is σ = 305147904. Its totient is φ = 112422744.

The previous prime is 196739947. The next prime is 196739951. The reversal of 196739949 is 949937691.

It is an interprime number because it is at equal distance from previous prime (196739947) and next prime (196739951).

It is not a de Polignac number, because 196739949 - 2¹ = 196739947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196739947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 669037 + ... + 669330.

It is an arithmetic number, because the mean of its divisors is an integer number (25428992).

Almost surely, 2^196739949 is an apocalyptic number.

It is an amenable number.

196739949 is a deficient number, since it is larger than the sum of its proper divisors (108407955).

196739949 is a wasteful number, since it uses less digits than its factorization.

196739949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338384 (or 1338377 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 57.

The square root of 196739949 is about 14026.4018550732. The cubic root of 196739949 is about 581.6086426723.

The spelling of 196739949 in words is "one hundred ninety-six million, seven hundred thirty-nine thousand, nine hundred forty-nine".