1972206 has 12 divisors (see below), whose sum is σ = 4273152. Its totient is φ = 657396.

The previous prime is 1972177. The next prime is 1972207. The reversal of 1972206 is 6022791.

It is a self number, because there is not a number n which added to its sum of digits gives 1972206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54766 + ... + 54801.

It is an arithmetic number, because the mean of its divisors is an integer number (356096).

2^1972206 is an apocalyptic number.

1972206 is an abundant number, since it is smaller than the sum of its proper divisors (2300946).

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

1972206 is a wasteful number, since it uses less digits than its factorization.

1972206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109575 (or 109572 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1972206 is about 1404.3525198468. The cubic root of 1972206 is about 125.4057428900.

Adding to 1972206 its reverse (6022791), we get a palindrome (7994997).

The spelling of 1972206 in words is "one million, nine hundred seventy-two thousand, two hundred six".