196975749 has 16 divisors (see below), whose sum is σ = 274563072. Its totient is φ = 125374128.

The previous prime is 196975741. The next prime is 196975763. The reversal of 196975749 is 947579691.

It is not a de Polignac number, because 196975749 - 2³ = 196975741 is a prime.

It is a super-3 number, since 3×196975749³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196975741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39532 + ... + 44234.

It is an arithmetic number, because the mean of its divisors is an integer number (17160192).

Almost surely, 2^196975749 is an apocalyptic number.

It is an amenable number.

196975749 is a deficient number, since it is larger than the sum of its proper divisors (77587323).

196975749 is a wasteful number, since it uses less digits than its factorization.

196975749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336.

The product of its digits is 4286520, while the sum is 57.

The square root of 196975749 is about 14034.8049149249. The cubic root of 196975749 is about 581.8409096228.

The spelling of 196975749 in words is "one hundred ninety-six million, nine hundred seventy-five thousand, seven hundred forty-nine".