6745780 has 24 divisors (see below), whose sum is σ = 14222880. Its totient is φ = 2687520.

The previous prime is 6745763. The next prime is 6745801. The reversal of 6745780 is 875476.

It is a happy number.

It is a plaindrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6111 + ... + 7129.

It is an arithmetic number, because the mean of its divisors is an integer number (592620).

Almost surely, 2^6745780 is an apocalyptic number.

It is an amenable number.

6745780 is an abundant number, since it is smaller than the sum of its proper divisors (7477100).

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

6745780 is a wasteful number, since it uses less digits than its factorization.

6745780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 6745780 is about 2597.2639450006. The cubic root of 6745780 is about 188.9487650752.

The spelling of 6745780 in words is "six million, seven hundred forty-five thousand, seven hundred eighty".