34183987 has 2 divisors, whose sum is σ = 34183988. Its totient is φ = 34183986.

The previous prime is 34183943. The next prime is 34183997. The reversal of 34183987 is 78938143.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34183987 is a prime.

It is not a weakly prime, because it can be changed into another prime (34183997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17091993 + 17091994.

It is an arithmetic number, because the mean of its divisors is an integer number (17091994).

Almost surely, 2^34183987 is an apocalyptic number.

34183987 is a deficient number, since it is larger than the sum of its proper divisors (1).

34183987 is an equidigital number, since it uses as much as digits as its factorization.

34183987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 34183987 is about 5846.7073639785. The cubic root of 34183987 is about 324.5444884925.

The spelling of 34183987 in words is "thirty-four million, one hundred eighty-three thousand, nine hundred eighty-seven".