2758859 has 4 divisors (see below), whose sum is σ = 2800104. Its totient is φ = 2717616.

The previous prime is 2758843. The next prime is 2758871. The reversal of 2758859 is 9588572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2758859 - 2⁴ = 2758843 is a prime.

It is a super-2 number, since 2×2758859² = 15222605963762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2758829) 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, 20522 + ... + 20655.

It is an arithmetic number, because the mean of its divisors is an integer number (700026).

2^2758859 is an apocalyptic number.

2758859 is a deficient number, since it is larger than the sum of its proper divisors (41245).

2758859 is an equidigital number, since it uses as much as digits as its factorization.

2758859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41244.

The product of its digits is 201600, while the sum is 44.

The square root of 2758859 is about 1660.9813364394. The cubic root of 2758859 is about 140.2522493107.

The spelling of 2758859 in words is "two million, seven hundred fifty-eight thousand, eight hundred fifty-nine".