2820172673 has 8 divisors (see below), whose sum is σ = 2889139968. Its totient is φ = 2751359184.

The previous prime is 2820172633. The next prime is 2820172681. The reversal of 2820172673 is 3762710282.

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 2820172673 - 2⁸ = 2820172417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2820172633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890 + ... + 75107.

It is an arithmetic number, because the mean of its divisors is an integer number (361142496).

Almost surely, 2^2820172673 is an apocalyptic number.

It is an amenable number.

2820172673 is a deficient number, since it is larger than the sum of its proper divisors (68967295).

2820172673 is an equidigital number, since it uses as much as digits as its factorization.

2820172673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76903.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2820172673 is about 53105.2979748725. The cubic root of 2820172673 is about 1412.8364799244.

The spelling of 2820172673 in words is "two billion, eight hundred twenty million, one hundred seventy-two thousand, six hundred seventy-three".