34394047 has 4 divisors (see below), whose sum is σ = 36204280. Its totient is φ = 32583816.

The previous prime is 34394027. The next prime is 34394051. The reversal of 34394047 is 74049343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74049343 = 151 ⋅490393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34394047 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 (34394027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905088 + ... + 905125.

It is an arithmetic number, because the mean of its divisors is an integer number (9051070).

Almost surely, 2^34394047 is an apocalyptic number.

34394047 is a deficient number, since it is larger than the sum of its proper divisors (1810233).

34394047 is a wasteful number, since it uses less digits than its factorization.

34394047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810232.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 34394047 is about 5864.6438084508. The cubic root of 34394047 is about 325.2079048432.

The spelling of 34394047 in words is "thirty-four million, three hundred ninety-four thousand, forty-seven".