2573986 has 8 divisors (see below), whose sum is σ = 3867804. Its totient is φ = 1284720.

The previous prime is 2573983. The next prime is 2574007. The reversal of 2573986 is 6893752.

It can be written as a sum of positive squares in 2 ways, for example, as 2461761 + 112225 = 1569^2 + 335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2²¹ + 5 + 7⁶ + 3⁹ + 9⁵ + 8³ + 6⁷ .

It is not an unprimeable number, because it can be changed into a prime (2573983) 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, 1516 + ... + 2728.

2^2573986 is an apocalyptic number.

2573986 is a deficient number, since it is larger than the sum of its proper divisors (1293818).

2573986 is a wasteful number, since it uses less digits than its factorization.

2573986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276.

The product of its digits is 90720, while the sum is 40.

The square root of 2573986 is about 1604.3646717626. The cubic root of 2573986 is about 137.0467455521.

The spelling of 2573986 in words is "two million, five hundred seventy-three thousand, nine hundred eighty-six".