42486887 has 2 divisors, whose sum is σ = 42486888. Its totient is φ = 42486886.

The previous prime is 42486883. The next prime is 42486889. The reversal of 42486887 is 78868424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42486887 - 2² = 42486883 is a prime.

Together with 42486889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42486883) 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 as a sum of consecutive naturals, namely, 21243443 + 21243444.

It is an arithmetic number, because the mean of its divisors is an integer number (21243444).

Almost surely, 2^42486887 is an apocalyptic number.

42486887 is a deficient number, since it is larger than the sum of its proper divisors (1).

42486887 is an equidigital number, since it uses as much as digits as its factorization.

42486887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688128, while the sum is 47.

The square root of 42486887 is about 6518.1966064242. The cubic root of 42486887 is about 348.9407074364.

The spelling of 42486887 in words is "forty-two million, four hundred eighty-six thousand, eight hundred eighty-seven".