1001972 has 12 divisors (see below), whose sum is σ = 1829856. Its totient is φ = 479160.

The previous prime is 1001953. The next prime is 1001977. The reversal of 1001972 is 2791001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5354 + ... + 5537.

It is an arithmetic number, because the mean of its divisors is an integer number (152488).

2^1001972 is an apocalyptic number.

It is an amenable number.

1001972 is a deficient number, since it is larger than the sum of its proper divisors (827884).

1001972 is a wasteful number, since it uses less digits than its factorization.

1001972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10918 (or 10916 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1001972 is about 1000.9855143807. The cubic root of 1001972 is about 100.0656901719.

Adding to 1001972 its reverse (2791001), we get a palindrome (3792973).

The spelling of 1001972 in words is "one million, one thousand, nine hundred seventy-two".