6890145 has 8 divisors (see below), whose sum is σ = 11024256. Its totient is φ = 3674736.

The previous prime is 6890123. The next prime is 6890161. The reversal of 6890145 is 5410986.

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

It is not a de Polignac number, because 6890145 - 2⁷ = 6890017 is a prime.

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, 229657 + ... + 229686.

It is an arithmetic number, because the mean of its divisors is an integer number (1378032).

Almost surely, 2^6890145 is an apocalyptic number.

It is an amenable number.

6890145 is a deficient number, since it is larger than the sum of its proper divisors (4134111).

6890145 is a wasteful number, since it uses less digits than its factorization.

6890145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459351.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 6890145 is about 2624.9085698363. The cubic root of 6890145 is about 190.2871466114.

The spelling of 6890145 in words is "six million, eight hundred ninety thousand, one hundred forty-five".