8345147 has 4 divisors (see below), whose sum is σ = 8836056. Its totient is φ = 7854240.

The previous prime is 8345119. The next prime is 8345153. The reversal of 8345147 is 7415438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7415438 = 2 ⋅3707719.

It is a cyclic number.

It is not a de Polignac number, because 8345147 - 2⁶ = 8345083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8345167) 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, 245429 + ... + 245462.

It is an arithmetic number, because the mean of its divisors is an integer number (2209014).

Almost surely, 2^8345147 is an apocalyptic number.

8345147 is a deficient number, since it is larger than the sum of its proper divisors (490909).

8345147 is a wasteful number, since it uses less digits than its factorization.

8345147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490908.

The product of its digits is 13440, while the sum is 32.

The square root of 8345147 is about 2888.7968083616. The cubic root of 8345147 is about 202.8358254254.

The spelling of 8345147 in words is "eight million, three hundred forty-five thousand, one hundred forty-seven".