2861069 has 4 divisors (see below), whose sum is σ = 2873280. Its totient is φ = 2848860.

The previous prime is 2861063. The next prime is 2861081. The reversal of 2861069 is 9601682.

2861069 = T₁₉ + T₂₀ + ... + T₂₅₇.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9601682 = 2 ⋅4800841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2861069 is a prime.

It is a super-2 number, since 2×2861069² = 16371431645522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5747 + ... + 6224.

It is an arithmetic number, because the mean of its divisors is an integer number (718320).

2^2861069 is an apocalyptic number.

It is an amenable number.

2861069 is a deficient number, since it is larger than the sum of its proper divisors (12211).

2861069 is a wasteful number, since it uses less digits than its factorization.

2861069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12210.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2861069 is about 1691.4694794764. The cubic root of 2861069 is about 141.9633079833.

The spelling of 2861069 in words is "two million, eight hundred sixty-one thousand, sixty-nine".