1671992 has 32 divisors (see below), whose sum is σ = 3640800. Its totient is φ = 705024.

The previous prime is 1671983. The next prime is 1671997. The reversal of 1671992 is 2991761.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671997) 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, 3884 + ... + 4292.

It is an arithmetic number, because the mean of its divisors is an integer number (113775).

2^1671992 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 1671992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820400).

1671992 is an abundant number, since it is smaller than the sum of its proper divisors (1968808).

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

1671992 is a wasteful number, since it uses less digits than its factorization.

1671992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 491 counting only the distinct ones).

The product of its digits is 6804, while the sum is 35.

The square root of 1671992 is about 1293.0552965747. The cubic root of 1671992 is about 118.6892535103.

The spelling of 1671992 in words is "one million, six hundred seventy-one thousand, nine hundred ninety-two".