6493578 has 48 divisors (see below), whose sum is σ = 16279200. Its totient is φ = 1711584.

The previous prime is 6493561. The next prime is 6493603. The reversal of 6493578 is 8753946.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2973 + ... + 4671.

It is an arithmetic number, because the mean of its divisors is an integer number (339150).

Almost surely, 2^6493578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6493578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8139600).

6493578 is an abundant number, since it is smaller than the sum of its proper divisors (9785622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6493578 is a wasteful number, since it uses less digits than its factorization.

6493578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1724 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 6493578 is about 2548.2499877367. The cubic root of 6493578 is about 186.5640755712.

The spelling of 6493578 in words is "six million, four hundred ninety-three thousand, five hundred seventy-eight".