2173900 has 18 divisors (see below), whose sum is σ = 4717580. Its totient is φ = 869520.

The previous prime is 2173889. The next prime is 2173903. The reversal of 2173900 is 93712.

It is not an unprimeable number, because it can be changed into a prime (2173903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10770 + ... + 10969.

2^2173900 is an apocalyptic number.

2173900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2173900 is an abundant number, since it is smaller than the sum of its proper divisors (2543680).

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

2173900 is a wasteful number, since it uses less digits than its factorization.

2173900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21753 (or 21746 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 2173900 is about 1474.4151382837. The cubic root of 2173900 is about 129.5427724526.

The spelling of 2173900 in words is "two million, one hundred seventy-three thousand, nine hundred".