1001672 has 32 divisors (see below), whose sum is σ = 2219520. Its totient is φ = 414720.

The previous prime is 1001669. The next prime is 1001683. The reversal of 1001672 is 2761001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (69360).

2^1001672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1109760).

1001672 is an abundant number, since it is smaller than the sum of its proper divisors (1217848).

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

1001672 is a wasteful number, since it uses less digits than its factorization.

1001672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1001672 is about 1000.8356508438. The cubic root of 1001672 is about 100.0557023001.

Adding to 1001672 its reverse (2761001), we get a palindrome (3762673).

The spelling of 1001672 in words is "one million, one thousand, six hundred seventy-two".