19960947 has 12 divisors (see below), whose sum is σ = 29446560. Its totient is φ = 13023888.

The previous prime is 19960943. The next prime is 19961003. The reversal of 19960947 is 74906991.

It is not a de Polignac number, because 19960947 - 2² = 19960943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19960943) 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 11 ways as a sum of consecutive naturals, for example, 23172 + ... + 24017.

It is an arithmetic number, because the mean of its divisors is an integer number (2453880).

Almost surely, 2^19960947 is an apocalyptic number.

19960947 is a deficient number, since it is larger than the sum of its proper divisors (9485613).

19960947 is a wasteful number, since it uses less digits than its factorization.

19960947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47242 (or 47239 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 19960947 is about 4467.7675633363. The cubic root of 19960947 is about 271.2649696199.

The spelling of 19960947 in words is "nineteen million, nine hundred sixty thousand, nine hundred forty-seven".