42893517 has 4 divisors (see below), whose sum is σ = 57191360. Its totient is φ = 28595676.

The previous prime is 42893479. The next prime is 42893519. The reversal of 42893517 is 71539824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42893517 - 2¹² = 42889421 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42893519) 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 in 3 ways as a sum of consecutive naturals, for example, 7148917 + ... + 7148922.

It is an arithmetic number, because the mean of its divisors is an integer number (14297840).

Almost surely, 2^42893517 is an apocalyptic number.

It is an amenable number.

42893517 is a deficient number, since it is larger than the sum of its proper divisors (14297843).

42893517 is a wasteful number, since it uses less digits than its factorization.

42893517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14297842.

The product of its digits is 60480, while the sum is 39.

The square root of 42893517 is about 6549.3142389108. The cubic root of 42893517 is about 350.0503791426.

The spelling of 42893517 in words is "forty-two million, eight hundred ninety-three thousand, five hundred seventeen".