34390847 has 4 divisors (see below), whose sum is σ = 36413856. Its totient is φ = 32367840.

The previous prime is 34390831. The next prime is 34390859. The reversal of 34390847 is 74809343.

34390847 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, and also an emirpimes, since its reverse is a distinct semiprime: 74809343 = 7 ⋅10687049.

It is a cyclic number.

It is not a de Polignac number, because 34390847 - 2⁴ = 34390831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34390847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34390547) 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, 1011479 + ... + 1011512.

It is an arithmetic number, because the mean of its divisors is an integer number (9103464).

Almost surely, 2^34390847 is an apocalyptic number.

34390847 is a deficient number, since it is larger than the sum of its proper divisors (2023009).

34390847 is a wasteful number, since it uses less digits than its factorization.

34390847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023008.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 34390847 is about 5864.3709807617. The cubic root of 34390847 is about 325.1978188190.

The spelling of 34390847 in words is "thirty-four million, three hundred ninety thousand, eight hundred forty-seven".