42436787 has 2 divisors, whose sum is σ = 42436788. Its totient is φ = 42436786.

The previous prime is 42436769. The next prime is 42436789. The reversal of 42436787 is 78763424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42436787 - 2¹⁰ = 42435763 is a prime.

Together with 42436789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42436789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218393 + 21218394.

It is an arithmetic number, because the mean of its divisors is an integer number (21218394).

Almost surely, 2^42436787 is an apocalyptic number.

42436787 is a deficient number, since it is larger than the sum of its proper divisors (1).

42436787 is an equidigital number, since it uses as much as digits as its factorization.

42436787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 41.

The square root of 42436787 is about 6514.3523853105. The cubic root of 42436787 is about 348.8034980001.

The spelling of 42436787 in words is "forty-two million, four hundred thirty-six thousand, seven hundred eighty-seven".