385322547 has 4 divisors (see below), whose sum is σ = 513763400. Its totient is φ = 256881696.

The previous prime is 385322537. The next prime is 385322549. The reversal of 385322547 is 745223583.

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

It is not a de Polignac number, because 385322547 - 2⁷ = 385322419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385322549) 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, 64220422 + ... + 64220427.

It is an arithmetic number, because the mean of its divisors is an integer number (128440850).

Almost surely, 2^385322547 is an apocalyptic number.

385322547 is a deficient number, since it is larger than the sum of its proper divisors (128440853).

385322547 is a wasteful number, since it uses less digits than its factorization.

385322547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128440852.

The product of its digits is 201600, while the sum is 39.

The square root of 385322547 is about 19629.6344082105. The cubic root of 385322547 is about 727.6817349260.

The spelling of 385322547 in words is "three hundred eighty-five million, three hundred twenty-two thousand, five hundred forty-seven".