2169764 has 6 divisors (see below), whose sum is σ = 3797094. Its totient is φ = 1084880.

The previous prime is 2169757. The next prime is 2169773. The reversal of 2169764 is 4679612.

2169764 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 209764 = 1400^2 + 458^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271217 + ... + 271224.

It is an arithmetic number, because the mean of its divisors is an integer number (632849).

2^2169764 is an apocalyptic number.

It is an amenable number.

2169764 is a deficient number, since it is larger than the sum of its proper divisors (1627330).

2169764 is a wasteful number, since it uses less digits than its factorization.

2169764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542445 (or 542443 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 2169764 is about 1473.0118804680. The cubic root of 2169764 is about 129.4605655037.

Subtracting from 2169764 its sum of digits (35), we obtain a square (2169729 = 1473²).

The spelling of 2169764 in words is "two million, one hundred sixty-nine thousand, seven hundred sixty-four".