20889082 has 4 divisors (see below), whose sum is σ = 31333626. Its totient is φ = 10444540.

The previous prime is 20889061. The next prime is 20889109. The reversal of 20889082 is 28098802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14432401 + 6456681 = 3799^2 + 2541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5222269 + ... + 5222272.

Almost surely, 2^20889082 is an apocalyptic number.

20889082 is a deficient number, since it is larger than the sum of its proper divisors (10444544).

20889082 is a wasteful number, since it uses less digits than its factorization.

20889082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444543.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 20889082 is about 4570.4575263315. The cubic root of 20889082 is about 275.4058228633.

The spelling of 20889082 in words is "twenty million, eight hundred eighty-nine thousand, eighty-two".