6580642 has 4 divisors (see below), whose sum is σ = 9870966. Its totient is φ = 3290320.

The previous prime is 6580633. The next prime is 6580643. The reversal of 6580642 is 2460856.

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., 4835601 + 1745041 = 2199^2 + 1321^2 .

It is not an unprimeable number, because it can be changed into a prime (6580643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645159 + ... + 1645162.

Almost surely, 2^6580642 is an apocalyptic number.

6580642 is a deficient number, since it is larger than the sum of its proper divisors (3290324).

6580642 is a wasteful number, since it uses less digits than its factorization.

6580642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290323.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 6580642 is about 2565.2762034526. The cubic root of 6580642 is about 187.3941755435.

The spelling of 6580642 in words is "six million, five hundred eighty thousand, six hundred forty-two".