1972071 has 6 divisors (see below), whose sum is σ = 2848560. Its totient is φ = 1314708.

The previous prime is 1972049. The next prime is 1972079. The reversal of 1972071 is 1702791.

It is not a de Polignac number, because 1972071 - 2⁶ = 1972007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972079) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 109551 + ... + 109568.

It is an arithmetic number, because the mean of its divisors is an integer number (474760).

2^1972071 is an apocalyptic number.

1972071 is a deficient number, since it is larger than the sum of its proper divisors (876489).

1972071 is a wasteful number, since it uses less digits than its factorization.

1972071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219125 (or 219122 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 1972071 is about 1404.3044541694. The cubic root of 1972071 is about 125.4028814307.

It can be divided in two parts, 19720 and 71, that added together give a palindrome (19791).

The spelling of 1972071 in words is "one million, nine hundred seventy-two thousand, seventy-one".