20797446 has 8 divisors (see below), whose sum is σ = 41594904. Its totient is φ = 6932480.

The previous prime is 20797411. The next prime is 20797463. The reversal of 20797446 is 64479702.

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

20797446 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1733115 + ... + 1733126.

It is an arithmetic number, because the mean of its divisors is an integer number (5199363).

Almost surely, 2^20797446 is an apocalyptic number.

20797446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20797446 is a wasteful number, since it uses less digits than its factorization.

20797446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466246.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 20797446 is about 4560.4216910281. The cubic root of 20797446 is about 275.0025167814.

The spelling of 20797446 in words is "twenty million, seven hundred ninety-seven thousand, four hundred forty-six".