6890667 has 8 divisors (see below), whose sum is σ = 10500096. Its totient is φ = 3937512.

The previous prime is 6890659. The next prime is 6890671. The reversal of 6890667 is 7660986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6890667 - 2³ = 6890659 is a prime.

It is a super-3 number, since 3×6890667³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6890657) 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 7 ways as a sum of consecutive naturals, for example, 164043 + ... + 164084.

It is an arithmetic number, because the mean of its divisors is an integer number (1312512).

Almost surely, 2^6890667 is an apocalyptic number.

6890667 is a deficient number, since it is larger than the sum of its proper divisors (3609429).

6890667 is a wasteful number, since it uses less digits than its factorization.

6890667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328137.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 6890667 is about 2625.0079999878. The cubic root of 6890667 is about 190.2919518989.

Subtracting from 6890667 its sum of digits (42), we obtain a square (6890625 = 2625²).

It can be divided in two parts, 6890 and 667, that added together give a palindrome (7557).

The spelling of 6890667 in words is "six million, eight hundred ninety thousand, six hundred sixty-seven".