20874837 has 8 divisors (see below), whose sum is σ = 27855520. Its totient is φ = 13905360.

The previous prime is 20874817. The next prime is 20874839. The reversal of 20874837 is 73847802.

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

It is not a de Polignac number, because 20874837 - 2¹⁰ = 20873813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20874795 and 20874804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20874839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3714 + ... + 7452.

It is an arithmetic number, because the mean of its divisors is an integer number (3481940).

Almost surely, 2^20874837 is an apocalyptic number.

It is an amenable number.

20874837 is a deficient number, since it is larger than the sum of its proper divisors (6980683).

20874837 is a wasteful number, since it uses less digits than its factorization.

20874837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 20874837 is about 4568.8988826631. The cubic root of 20874837 is about 275.3432056539.

The spelling of 20874837 in words is "twenty million, eight hundred seventy-four thousand, eight hundred thirty-seven".