20719612 has 6 divisors (see below), whose sum is σ = 36259328. Its totient is φ = 10359804.

The previous prime is 20719603. The next prime is 20719631. The reversal of 20719612 is 21691702.

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, 2589948 + ... + 2589955.

Almost surely, 2^20719612 is an apocalyptic number.

It is an amenable number.

20719612 is a deficient number, since it is larger than the sum of its proper divisors (15539716).

20719612 is a wasteful number, since it uses less digits than its factorization.

20719612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5179907 (or 5179905 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 20719612 is about 4551.8800511437. The cubic root of 20719612 is about 274.6590242268.

The spelling of 20719612 in words is "twenty million, seven hundred nineteen thousand, six hundred twelve".