6877890 has 24 divisors (see below), whose sum is σ = 17882748. Its totient is φ = 1834080.

The previous prime is 6877889. The next prime is 6877891. The reversal of 6877890 is 987786.

It is an interprime number because it is at equal distance from previous prime (6877889) and next prime (6877891).

It can be written as a sum of positive squares in 2 ways, for example, as 6007401 + 870489 = 2451^2 + 933^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6877891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38121 + ... + 38300.

Almost surely, 2^6877890 is an apocalyptic number.

6877890 is an abundant number, since it is smaller than the sum of its proper divisors (11004858).

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

6877890 is a wasteful number, since it uses less digits than its factorization.

6877890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76434 (or 76431 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 6877890 is about 2622.5731638984. The cubic root of 6877890 is about 190.1742630210.

The spelling of 6877890 in words is "six million, eight hundred seventy-seven thousand, eight hundred ninety".