42584831 has 2 divisors, whose sum is σ = 42584832. Its totient is φ = 42584830.

The previous prime is 42584827. The next prime is 42584863. The reversal of 42584831 is 13848524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42584831 - 2² = 42584827 is a prime.

It is a super-2 number, since 2×42584831² = 3626935662597122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42584791 and 42584800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42584821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21292415 + 21292416.

It is an arithmetic number, because the mean of its divisors is an integer number (21292416).

Almost surely, 2^42584831 is an apocalyptic number.

42584831 is a deficient number, since it is larger than the sum of its proper divisors (1).

42584831 is an equidigital number, since it uses as much as digits as its factorization.

42584831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30720, while the sum is 35.

The square root of 42584831 is about 6525.7054024833. The cubic root of 42584831 is about 349.2086365351.

The spelling of 42584831 in words is "forty-two million, five hundred eighty-four thousand, eight hundred thirty-one".