6172949 has 2 divisors, whose sum is σ = 6172950. Its totient is φ = 6172948.

The previous prime is 6172931. The next prime is 6172987. The reversal of 6172949 is 9492716.

It is an a-pointer prime, because the next prime (6172987) can be obtained adding 6172949 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6027025 + 145924 = 2455^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 6172949 - 2²⁰ = 5124373 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6172909) 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 as a sum of consecutive naturals, namely, 3086474 + 3086475.

It is an arithmetic number, because the mean of its divisors is an integer number (3086475).

Almost surely, 2^6172949 is an apocalyptic number.

It is an amenable number.

6172949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6172949 is an equidigital number, since it uses as much as digits as its factorization.

6172949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 6172949 is about 2484.5420101097. The cubic root of 6172949 is about 183.4414873319.

The spelling of 6172949 in words is "six million, one hundred seventy-two thousand, nine hundred forty-nine".