42817373 has 6 divisors (see below), whose sum is σ = 45484506. Its totient is φ = 40298432.

The previous prime is 42817363. The next prime is 42817391. The reversal of 42817373 is 37371824.

It can be written as a sum of positive squares in 3 ways, for example, as 23833924 + 18983449 = 4882^2 + 4357^2 .

It is not a de Polignac number, because 42817373 - 2⁶ = 42817309 is a prime.

It is a super-2 number, since 2×42817373² = 3666654861242258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42817363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73790 + ... + 74367.

It is an arithmetic number, because the mean of its divisors is an integer number (7580751).

Almost surely, 2^42817373 is an apocalyptic number.

It is an amenable number.

42817373 is a deficient number, since it is larger than the sum of its proper divisors (2667133).

42817373 is a wasteful number, since it uses less digits than its factorization.

42817373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148191 (or 148174 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 42817373 is about 6543.4985290745. The cubic root of 42817373 is about 349.8431215305.

The spelling of 42817373 in words is "forty-two million, eight hundred seventeen thousand, three hundred seventy-three".