42827517 has 24 divisors (see below), whose sum is σ = 63063000. Its totient is φ = 28003968.

The previous prime is 42827513. The next prime is 42827531. The reversal of 42827517 is 71572824.

It can be written as a sum of positive squares in 4 ways, for example, as 11758041 + 31069476 = 3429^2 + 5574^2 .

It is not a de Polignac number, because 42827517 - 2² = 42827513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42827513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146023 + ... + 146315.

It is an arithmetic number, because the mean of its divisors is an integer number (2627625).

Almost surely, 2^42827517 is an apocalyptic number.

It is an amenable number.

42827517 is a deficient number, since it is larger than the sum of its proper divisors (20235483).

42827517 is a wasteful number, since it uses less digits than its factorization.

42827517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 554 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 42827517 is about 6544.2736036935. The cubic root of 42827517 is about 349.8707468312.

The spelling of 42827517 in words is "forty-two million, eight hundred twenty-seven thousand, five hundred seventeen".