2172470693 has 2 divisors, whose sum is σ = 2172470694. Its totient is φ = 2172470692.

The previous prime is 2172470633. The next prime is 2172470719. The reversal of 2172470693 is 3960742712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2053267969 + 119202724 = 45313^2 + 10918^2 .

It is a cyclic number.

It is not a de Polignac number, because 2172470693 - 2¹⁴ = 2172454309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2172470693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2172470633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086235346 + 1086235347.

It is an arithmetic number, because the mean of its divisors is an integer number (1086235347).

Almost surely, 2^2172470693 is an apocalyptic number.

It is an amenable number.

2172470693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172470693 is an equidigital number, since it uses as much as digits as its factorization.

2172470693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 2172470693 is about 46609.7703598720. The cubic root of 2172470693 is about 1295.1437541107.

The spelling of 2172470693 in words is "two billion, one hundred seventy-two million, four hundred seventy thousand, six hundred ninety-three".