20873962 has 4 divisors (see below), whose sum is σ = 31310946. Its totient is φ = 10436980.

The previous prime is 20873959. The next prime is 20873999. The reversal of 20873962 is 26937802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26937802 = 2 ⋅13468901.

It can be written as a sum of positive squares in only one way, i.e., 20602521 + 271441 = 4539^2 + 521^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5218489 + ... + 5218492.

Almost surely, 2^20873962 is an apocalyptic number.

20873962 is a deficient number, since it is larger than the sum of its proper divisors (10436984).

20873962 is a wasteful number, since it uses less digits than its factorization.

20873962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10436983.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 20873962 is about 4568.8031255461. The cubic root of 20873962 is about 275.3393584594.

The spelling of 20873962 in words is "twenty million, eight hundred seventy-three thousand, nine hundred sixty-two".