6469780 has 24 divisors (see below), whose sum is σ = 13904352. Its totient is φ = 2527392.

The previous prime is 6469777. The next prime is 6469781. The reversal of 6469780 is 879646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6469781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902 + ... + 4621.

It is an arithmetic number, because the mean of its divisors is an integer number (579348).

Almost surely, 2^6469780 is an apocalyptic number.

It is an amenable number.

6469780 is an abundant number, since it is smaller than the sum of its proper divisors (7434572).

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

6469780 is a wasteful number, since it uses less digits than its factorization.

6469780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575 (or 7573 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 6469780 is about 2543.5762225654. The cubic root of 6469780 is about 186.3358866980.

The spelling of 6469780 in words is "six million, four hundred sixty-nine thousand, seven hundred eighty".