34681399 has 2 divisors, whose sum is σ = 34681400. Its totient is φ = 34681398.

The previous prime is 34681393. The next prime is 34681417. The reversal of 34681399 is 99318643.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34681399 - 2⁷ = 34681271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34681393) 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, 17340699 + 17340700.

It is an arithmetic number, because the mean of its divisors is an integer number (17340700).

Almost surely, 2^34681399 is an apocalyptic number.

34681399 is a deficient number, since it is larger than the sum of its proper divisors (1).

34681399 is an equidigital number, since it uses as much as digits as its factorization.

34681399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 34681399 is about 5889.0915258637. The cubic root of 34681399 is about 326.1110659489. Note that the first 3 decimals are identical.

The spelling of 34681399 in words is "thirty-four million, six hundred eighty-one thousand, three hundred ninety-nine".