20947414 has 8 divisors (see below), whose sum is σ = 31863888. Its totient is φ = 10326120.

The previous prime is 20947393. The next prime is 20947427. The reversal of 20947414 is 41474902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73617 + ... + 73900.

It is an arithmetic number, because the mean of its divisors is an integer number (3982986).

Almost surely, 2^20947414 is an apocalyptic number.

20947414 is a deficient number, since it is larger than the sum of its proper divisors (10916474).

20947414 is a wasteful number, since it uses less digits than its factorization.

20947414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147590.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20947414 is about 4576.8344955875. The cubic root of 20947414 is about 275.6619381870.

The spelling of 20947414 in words is "twenty million, nine hundred forty-seven thousand, four hundred fourteen".