6873173021 has 32 divisors (see below), whose sum is σ = 8310895488. Its totient is φ = 5599722240.

The previous prime is 6873173003. The next prime is 6873173039. The reversal of 6873173021 is 1203713786.

It is an interprime number because it is at equal distance from previous prime (6873173003) and next prime (6873173039).

It is a cyclic number.

It is not a de Polignac number, because 6873173021 - 2¹⁰ = 6873171997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6873173051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3104711 + ... + 3106923.

It is an arithmetic number, because the mean of its divisors is an integer number (259715484).

Almost surely, 2^6873173021 is an apocalyptic number.

It is an amenable number.

6873173021 is a deficient number, since it is larger than the sum of its proper divisors (1437722467).

6873173021 is a wasteful number, since it uses less digits than its factorization.

6873173021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 6873173021 is about 82904.6019289641. The cubic root of 6873173021 is about 1901.3077811728.

The spelling of 6873173021 in words is "six billion, eight hundred seventy-three million, one hundred seventy-three thousand, twenty-one".