19796147 has 24 divisors (see below), whose sum is σ = 24172560. Its totient is φ = 16148160.

The previous prime is 19796141. The next prime is 19796173. The reversal of 19796147 is 74169791.

It is not a de Polignac number, because 19796147 - 2¹² = 19792051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19796098 and 19796107.

It is not an unprimeable number, because it can be changed into a prime (19796141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110504 + ... + 110682.

It is an arithmetic number, because the mean of its divisors is an integer number (1007190).

Almost surely, 2^19796147 is an apocalyptic number.

19796147 is a deficient number, since it is larger than the sum of its proper divisors (4376413).

19796147 is a wasteful number, since it uses less digits than its factorization.

19796147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 284 counting only the distinct ones).

The product of its digits is 95256, while the sum is 44.

The square root of 19796147 is about 4449.2861225145. The cubic root of 19796147 is about 270.5163734917.

The spelling of 19796147 in words is "nineteen million, seven hundred ninety-six thousand, one hundred forty-seven".