53843693 has 2 divisors, whose sum is σ = 53843694. Its totient is φ = 53843692.

The previous prime is 53843689. The next prime is 53843723. The reversal of 53843693 is 39634835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34597924 + 19245769 = 5882^2 + 4387^2 .

It is a cyclic number.

It is not a de Polignac number, because 53843693 - 2² = 53843689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53843693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53843893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26921846 + 26921847.

It is an arithmetic number, because the mean of its divisors is an integer number (26921847).

Almost surely, 2^53843693 is an apocalyptic number.

It is an amenable number.

53843693 is a deficient number, since it is larger than the sum of its proper divisors (1).

53843693 is an equidigital number, since it uses as much as digits as its factorization.

53843693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 41.

The square root of 53843693 is about 7337.8261767365. The cubic root of 53843693 is about 377.6112690434.

The spelling of 53843693 in words is "fifty-three million, eight hundred forty-three thousand, six hundred ninety-three".