19946798 has 12 divisors (see below), whose sum is σ = 30235992. Its totient is φ = 9868800.

The previous prime is 19946791. The next prime is 19946803. The reversal of 19946798 is 89764991.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19946791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77486 + ... + 77742.

It is an arithmetic number, because the mean of its divisors is an integer number (2519666).

Almost surely, 2^19946798 is an apocalyptic number.

19946798 is a deficient number, since it is larger than the sum of its proper divisors (10289194).

19946798 is an equidigital number, since it uses as much as digits as its factorization.

19946798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 410 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 19946798 is about 4466.1838296246. The cubic root of 19946798 is about 271.2008605159.

The spelling of 19946798 in words is "nineteen million, nine hundred forty-six thousand, seven hundred ninety-eight".