43494853 has 2 divisors, whose sum is σ = 43494854. Its totient is φ = 43494852.

The previous prime is 43494827. The next prime is 43494877. The reversal of 43494853 is 35849434.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34833604 + 8661249 = 5902^2 + 2943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43494853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43494053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21747426 + 21747427.

It is an arithmetic number, because the mean of its divisors is an integer number (21747427).

Almost surely, 2^43494853 is an apocalyptic number.

It is an amenable number.

43494853 is a deficient number, since it is larger than the sum of its proper divisors (1).

43494853 is an equidigital number, since it uses as much as digits as its factorization.

43494853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 43494853 is about 6595.0627745307. The cubic root of 43494853 is about 351.6786112856.

The spelling of 43494853 in words is "forty-three million, four hundred ninety-four thousand, eight hundred fifty-three".