1668792 has 32 divisors (see below), whose sum is σ = 4308480. Its totient is φ = 538080.

The previous prime is 1668791. The next prime is 1668803. The reversal of 1668792 is 2978661.

It is a self number, because there is not a number n which added to its sum of digits gives 1668792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668791) 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, 378 + ... + 1865.

It is an arithmetic number, because the mean of its divisors is an integer number (134640).

2^1668792 is an apocalyptic number.

1668792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1668792 is an abundant number, since it is smaller than the sum of its proper divisors (2639688).

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

1668792 is a wasteful number, since it uses less digits than its factorization.

1668792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283 (or 2279 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 1668792 is about 1291.8173245471. The cubic root of 1668792 is about 118.6134859687.

The spelling of 1668792 in words is "one million, six hundred sixty-eight thousand, seven hundred ninety-two".