34378813 has 8 divisors (see below), whose sum is σ = 40998528. Its totient is φ = 28186224.

The previous prime is 34378763. The next prime is 34378823. The reversal of 34378813 is 31887343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-34378813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34378823) 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 in 7 ways as a sum of consecutive naturals, for example, 106606 + ... + 106927.

It is an arithmetic number, because the mean of its divisors is an integer number (5124816).

Almost surely, 2^34378813 is an apocalyptic number.

It is an amenable number.

34378813 is a deficient number, since it is larger than the sum of its proper divisors (6619715).

34378813 is a wasteful number, since it uses less digits than its factorization.

34378813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213563.

The product of its digits is 48384, while the sum is 37.

The square root of 34378813 is about 5863.3448644950. The cubic root of 34378813 is about 325.1598834628.

The spelling of 34378813 in words is "thirty-four million, three hundred seventy-eight thousand, eight hundred thirteen".