2173664 has 12 divisors (see below), whose sum is σ = 4279464. Its totient is φ = 1086816.

The previous prime is 2173663. The next prime is 2173679. The reversal of 2173664 is 4663712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33932 + ... + 33995.

It is an arithmetic number, because the mean of its divisors is an integer number (356622).

2^2173664 is an apocalyptic number.

It is an amenable number.

2173664 is a deficient number, since it is larger than the sum of its proper divisors (2105800).

2173664 is an equidigital number, since it uses as much as digits as its factorization.

2173664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67937 (or 67929 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 2173664 is about 1474.3351043776. The cubic root of 2173664 is about 129.5380845337.

Adding to 2173664 its product of digits (6048), we get a palindrome (2179712).

The spelling of 2173664 in words is "two million, one hundred seventy-three thousand, six hundred sixty-four".