6840780 has 24 divisors (see below), whose sum is σ = 19154352. Its totient is φ = 1824192.

The previous prime is 6840761. The next prime is 6840793. The reversal of 6840780 is 870486.

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, 56947 + ... + 57066.

It is an arithmetic number, because the mean of its divisors is an integer number (798098).

Almost surely, 2^6840780 is an apocalyptic number.

6840780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6840780 is an abundant number, since it is smaller than the sum of its proper divisors (12313572).

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

6840780 is a wasteful number, since it uses less digits than its factorization.

6840780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114025 (or 114023 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 6840780 is about 2615.4884821004. The cubic root of 6840780 is about 189.8316144337.

The spelling of 6840780 in words is "six million, eight hundred forty thousand, seven hundred eighty".