19706812 has 6 divisors (see below), whose sum is σ = 34486928. Its totient is φ = 9853404.

The previous prime is 19706809. The next prime is 19706821. The reversal of 19706812 is 21860791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2463348 + ... + 2463355.

Almost surely, 2^19706812 is an apocalyptic number.

It is an amenable number.

19706812 is a deficient number, since it is larger than the sum of its proper divisors (14780116).

19706812 is a wasteful number, since it uses less digits than its factorization.

19706812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926707 (or 4926705 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 19706812 is about 4439.2355197714. The cubic root of 19706812 is about 270.1088358668.

The spelling of 19706812 in words is "nineteen million, seven hundred six thousand, eight hundred twelve".