2143704 has 32 divisors (see below), whose sum is σ = 5400000. Its totient is φ = 709152.

The previous prime is 2143667. The next prime is 2143711. The reversal of 2143704 is 4073412.

It is a congruent number.

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, 4047 + ... + 4545.

It is an arithmetic number, because the mean of its divisors is an integer number (168750).

2^2143704 is an apocalyptic number.

2143704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2143704 is an abundant number, since it is smaller than the sum of its proper divisors (3256296).

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

2143704 is a wasteful number, since it uses less digits than its factorization.

2143704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2143704 is about 1464.1393376315. The cubic root of 2143704 is about 128.9401801849.

The spelling of 2143704 in words is "two million, one hundred forty-three thousand, seven hundred four".