1971006 has 16 divisors (see below), whose sum is σ = 4001664. Its totient is φ = 647064.

The previous prime is 1970999. The next prime is 1971007. The reversal of 1971006 is 6001791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1971007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (250104).

2^1971006 is an apocalyptic number.

1971006 is an abundant number, since it is smaller than the sum of its proper divisors (2030658).

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

1971006 is a wasteful number, since it uses less digits than its factorization.

1971006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 1971006 is about 1403.9252116833. The cubic root of 1971006 is about 125.3803031162.

Adding to 1971006 its reverse (6001791), we get a palindrome (7972797).

The spelling of 1971006 in words is "one million, nine hundred seventy-one thousand, six".