6855003 has 16 divisors (see below), whose sum is σ = 10200960. Its totient is φ = 4549608.

The previous prime is 6854993. The next prime is 6855007. The reversal of 6855003 is 3005586.

It is not a de Polignac number, because 6855003 - 2⁴ = 6854987 is a prime.

It is a super-2 number, since 2×6855003² = 93982132260018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

6855003 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6855007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7876 + ... + 8702.

It is an arithmetic number, because the mean of its divisors is an integer number (637560).

Almost surely, 2^6855003 is an apocalyptic number.

6855003 is a deficient number, since it is larger than the sum of its proper divisors (3345957).

6855003 is a wasteful number, since it uses less digits than its factorization.

6855003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 6855003 is about 2618.2060652286. The cubic root of 6855003 is about 189.9630860882.

The spelling of 6855003 in words is "six million, eight hundred fifty-five thousand, three".