3852172949 has 2 divisors, whose sum is σ = 3852172950. Its totient is φ = 3852172948.

The previous prime is 3852172939. The next prime is 3852172967. The reversal of 3852172949 is 9492712583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3792342724 + 59830225 = 61582^2 + 7735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3852172949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3852172897 and 3852172906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3852172939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1926086474 + 1926086475.

It is an arithmetic number, because the mean of its divisors is an integer number (1926086475).

Almost surely, 2^3852172949 is an apocalyptic number.

It is an amenable number.

3852172949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3852172949 is an equidigital number, since it uses as much as digits as its factorization.

3852172949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 3852172949 is about 62065.8758820014. The cubic root of 3852172949 is about 1567.6000153584.

The spelling of 3852172949 in words is "three billion, eight hundred fifty-two million, one hundred seventy-two thousand, nine hundred forty-nine".