34388391 has 4 divisors (see below), whose sum is σ = 45851192. Its totient is φ = 22925592.

The previous prime is 34388383. The next prime is 34388401. The reversal of 34388391 is 19388343.

34388391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 34388391 - 2³ = 34388383 is a prime.

It is a super-2 number, since 2×34388391² = 2365122871137762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34388351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5731396 + ... + 5731401.

It is an arithmetic number, because the mean of its divisors is an integer number (11462798).

Almost surely, 2^34388391 is an apocalyptic number.

34388391 is a deficient number, since it is larger than the sum of its proper divisors (11462801).

34388391 is a wasteful number, since it uses less digits than its factorization.

34388391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11462800.

The product of its digits is 62208, while the sum is 39.

The square root of 34388391 is about 5864.1615769008. The cubic root of 34388391 is about 325.1900773711.

The spelling of 34388391 in words is "thirty-four million, three hundred eighty-eight thousand, three hundred ninety-one".