6870155 has 8 divisors (see below), whose sum is σ = 8281872. Its totient is φ = 5471008.

The previous prime is 6870151. The next prime is 6870167. The reversal of 6870155 is 5510786.

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

It is a cyclic number.

It is not a de Polignac number, because 6870155 - 2² = 6870151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6870151) 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, 1892 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (1035234).

Almost surely, 2^6870155 is an apocalyptic number.

6870155 is a deficient number, since it is larger than the sum of its proper divisors (1411717).

6870155 is a wasteful number, since it uses less digits than its factorization.

6870155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6285.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 6870155 is about 2621.0980523437. The cubic root of 6870155 is about 190.1029451359.

The spelling of 6870155 in words is "six million, eight hundred seventy thousand, one hundred fifty-five".