42341687 has 2 divisors, whose sum is σ = 42341688. Its totient is φ = 42341686.

The previous prime is 42341683. The next prime is 42341699. The reversal of 42341687 is 78614324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42341687 - 2² = 42341683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42341683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170843 + 21170844.

It is an arithmetic number, because the mean of its divisors is an integer number (21170844).

Almost surely, 2^42341687 is an apocalyptic number.

42341687 is a deficient number, since it is larger than the sum of its proper divisors (1).

42341687 is an equidigital number, since it uses as much as digits as its factorization.

42341687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 42341687 is about 6507.0490239432. The cubic root of 42341687 is about 348.5427492129.

The spelling of 42341687 in words is "forty-two million, three hundred forty-one thousand, six hundred eighty-seven".