2021672206 has 4 divisors (see below), whose sum is σ = 3032508312. Its totient is φ = 1010836102.

The previous prime is 2021672197. The next prime is 2021672297. The reversal of 2021672206 is 6022761202.

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

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 as a sum of consecutive naturals, namely, 505418050 + ... + 505418053.

It is an arithmetic number, because the mean of its divisors is an integer number (758127078).

Almost surely, 2^2021672206 is an apocalyptic number.

2021672206 is a deficient number, since it is larger than the sum of its proper divisors (1010836106).

2021672206 is a wasteful number, since it uses less digits than its factorization.

2021672206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010836105.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2021672206 is about 44963.0093076520. The cubic root of 2021672206 is about 1264.4555883045.

The spelling of 2021672206 in words is "two billion, twenty-one million, six hundred seventy-two thousand, two hundred six".