34638287 has 2 divisors, whose sum is σ = 34638288. Its totient is φ = 34638286.

The previous prime is 34638271. The next prime is 34638293. The reversal of 34638287 is 78283643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34638287 - 2⁴ = 34638271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34638217) 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, 17319143 + 17319144.

It is an arithmetic number, because the mean of its divisors is an integer number (17319144).

Almost surely, 2^34638287 is an apocalyptic number.

34638287 is a deficient number, since it is larger than the sum of its proper divisors (1).

34638287 is an equidigital number, since it uses as much as digits as its factorization.

34638287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 34638287 is about 5885.4300607517. The cubic root of 34638287 is about 325.9758817642.

The spelling of 34638287 in words is "thirty-four million, six hundred thirty-eight thousand, two hundred eighty-seven".