2725858 has 4 divisors (see below), whose sum is σ = 4088790. Its totient is φ = 1362928.

The previous prime is 2725847. The next prime is 2725871. The reversal of 2725858 is 8585272.

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

It can be written as a sum of positive squares in only one way, i.e., 2350089 + 375769 = 1533^2 + 613^2 .

It is an alternating number because its digits alternate between even and odd.

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, 681463 + ... + 681466.

2^2725858 is an apocalyptic number.

2725858 is a deficient number, since it is larger than the sum of its proper divisors (1362932).

2725858 is a wasteful number, since it uses less digits than its factorization.

2725858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362931.

The product of its digits is 44800, while the sum is 37.

The square root of 2725858 is about 1651.0172621751. The cubic root of 2725858 is about 139.6907801097.

The spelling of 2725858 in words is "two million, seven hundred twenty-five thousand, eight hundred fifty-eight".