53847917 has 2 divisors, whose sum is σ = 53847918. Its totient is φ = 53847916.

The previous prime is 53847907. The next prime is 53847949. The reversal of 53847917 is 71974835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30625156 + 23222761 = 5534^2 + 4819^2 .

It is a cyclic number.

It is not a de Polignac number, because 53847917 - 2¹⁶ = 53782381 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53847907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26923958 + 26923959.

It is an arithmetic number, because the mean of its divisors is an integer number (26923959).

Almost surely, 2^53847917 is an apocalyptic number.

It is an amenable number.

53847917 is a deficient number, since it is larger than the sum of its proper divisors (1).

53847917 is an equidigital number, since it uses as much as digits as its factorization.

53847917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 53847917 is about 7338.1139947537. The cubic root of 53847917 is about 377.6211432318.

The spelling of 53847917 in words is "fifty-three million, eight hundred forty-seven thousand, nine hundred seventeen".