42787627 has 2 divisors, whose sum is σ = 42787628. Its totient is φ = 42787626.

The previous prime is 42787621. The next prime is 42787643. The reversal of 42787627 is 72678724.

42787627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42787627 - 2¹⁹ = 42263339 is a prime.

It is a super-2 number, since 2×42787627² = 3661562048582258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42787621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21393813 + 21393814.

It is an arithmetic number, because the mean of its divisors is an integer number (21393814).

Almost surely, 2^42787627 is an apocalyptic number.

42787627 is a deficient number, since it is larger than the sum of its proper divisors (1).

42787627 is an equidigital number, since it uses as much as digits as its factorization.

42787627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 263424, while the sum is 43.

The square root of 42787627 is about 6541.2251910479. The cubic root of 42787627 is about 349.7620886573.

The spelling of 42787627 in words is "forty-two million, seven hundred eighty-seven thousand, six hundred twenty-seven".