2173965 has 8 divisors (see below), whose sum is σ = 3478368. Its totient is φ = 1159440.

The previous prime is 2173957. The next prime is 2173967. The reversal of 2173965 is 5693712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2173965 - 2³ = 2173957 is a prime.

It is a super-2 number, since 2×2173965² = 9452247642450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173967) 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, 72451 + ... + 72480.

It is an arithmetic number, because the mean of its divisors is an integer number (434796).

2^2173965 is an apocalyptic number.

It is an amenable number.

2173965 is a deficient number, since it is larger than the sum of its proper divisors (1304403).

2173965 is a wasteful number, since it uses less digits than its factorization.

2173965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144939.

The product of its digits is 11340, while the sum is 33.

The square root of 2173965 is about 1474.4371807575. The cubic root of 2173965 is about 129.5440635571.

The spelling of 2173965 in words is "two million, one hundred seventy-three thousand, nine hundred sixty-five".