6780477 has 12 divisors (see below), whose sum is σ = 9937760. Its totient is φ = 4109160.

The previous prime is 6780463. The next prime is 6780479. The reversal of 6780477 is 7740876.

It is a happy number.

It is not a de Polignac number, because 6780477 - 2¹⁰ = 6779453 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6780479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8977 + ... + 9702.

Almost surely, 2^6780477 is an apocalyptic number.

It is an amenable number.

6780477 is a deficient number, since it is larger than the sum of its proper divisors (3157283).

6780477 is a wasteful number, since it uses less digits than its factorization.

6780477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704 (or 18693 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 6780477 is about 2603.9349070205. The cubic root of 6780477 is about 189.2721646474.

The spelling of 6780477 in words is "six million, seven hundred eighty thousand, four hundred seventy-seven".