2072869 has 2 divisors, whose sum is σ = 2072870. Its totient is φ = 2072868.

The previous prime is 2072839. The next prime is 2072893. The reversal of 2072869 is 9682702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1532644 + 540225 = 1238^2 + 735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2072869 is a prime.

It is a super-2 number, since 2×2072869² = 8593571782322, which contains 22 as substring.

It is an Ulam number.

2072869 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2072809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036434 + 1036435.

It is an arithmetic number, because the mean of its divisors is an integer number (1036435).

2^2072869 is an apocalyptic number.

It is an amenable number.

2072869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2072869 is an equidigital number, since it uses as much as digits as its factorization.

2072869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 2072869 is about 1439.7461581821. The cubic root of 2072869 is about 127.5040419070.

The spelling of 2072869 in words is "two million, seventy-two thousand, eight hundred sixty-nine".