2102769 has 6 divisors (see below), whose sum is σ = 3037346. Its totient is φ = 1401840.

The previous prime is 2102759. The next prime is 2102777. The reversal of 2102769 is 9672012.

It can be written as a sum of positive squares in only one way, i.e., 1292769 + 810000 = 1137^2 + 900^2 .

It is not a de Polignac number, because 2102769 - 2⁴ = 2102753 is a prime.

It is a super-2 number, since 2×2102769² = 8843274934722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102759) 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, 116812 + ... + 116829.

2^2102769 is an apocalyptic number.

It is an amenable number.

2102769 is a deficient number, since it is larger than the sum of its proper divisors (934577).

2102769 is a wasteful number, since it uses less digits than its factorization.

2102769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233647 (or 233644 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2102769 is about 1450.0927556539. The cubic root of 2102769 is about 128.1141762818.

The spelling of 2102769 in words is "two million, one hundred two thousand, seven hundred sixty-nine".