196499923 has 8 divisors (see below), whose sum is σ = 209338128. Its totient is φ = 183803904.

The previous prime is 196499909. The next prime is 196499929. The reversal of 196499923 is 329994691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 13-Lehmer number, since φ(196499923) divides (196499923-1)¹³.

It is a cyclic number.

It is not a de Polignac number, because 196499923 - 2¹³ = 196491731 is a prime.

It is a super-2 number, since 2×196499923² = 77224439478011858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196499929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32686 + ... + 38227.

It is an arithmetic number, because the mean of its divisors is an integer number (26167266).

Almost surely, 2^196499923 is an apocalyptic number.

196499923 is a deficient number, since it is larger than the sum of its proper divisors (12838205).

196499923 is a wasteful number, since it uses less digits than its factorization.

196499923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71093.

The product of its digits is 944784, while the sum is 52.

The square root of 196499923 is about 14017.8430223769. The cubic root of 196499923 is about 581.3720223567.

The spelling of 196499923 in words is "one hundred ninety-six million, four hundred ninety-nine thousand, nine hundred twenty-three".