42973853 has 8 divisors (see below), whose sum is σ = 47875800. Its totient is φ = 38299968.

The previous prime is 42973837. The next prime is 42973891. The reversal of 42973853 is 35837924.

It can be written as a sum of positive squares in 4 ways, for example, as 9078169 + 33895684 = 3013^2 + 5822^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42973853 - 2⁴ = 42973837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42973853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42973823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56618 + ... + 57371.

It is an arithmetic number, because the mean of its divisors is an integer number (5984475).

Almost surely, 2^42973853 is an apocalyptic number.

It is an amenable number.

42973853 is a deficient number, since it is larger than the sum of its proper divisors (4901947).

42973853 is a wasteful number, since it uses less digits than its factorization.

42973853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114031.

The product of its digits is 181440, while the sum is 41.

The square root of 42973853 is about 6555.4445310749. Note that the first 3 decimals coincide. The cubic root of 42973853 is about 350.2687812926.

The spelling of 42973853 in words is "forty-two million, nine hundred seventy-three thousand, eight hundred fifty-three".