381364427 has 4 divisors (see below), whose sum is σ = 381411720. Its totient is φ = 381317136.

The previous prime is 381364397. The next prime is 381364429. The reversal of 381364427 is 724463183.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 381364427 - 2⁸ = 381364171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381364429) 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, 8177 + ... + 28802.

It is an arithmetic number, because the mean of its divisors is an integer number (95352930).

Almost surely, 2^381364427 is an apocalyptic number.

381364427 is a deficient number, since it is larger than the sum of its proper divisors (47293).

381364427 is a wasteful number, since it uses less digits than its factorization.

381364427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47292.

The product of its digits is 96768, while the sum is 38.

The square root of 381364427 is about 19528.5541451486. The cubic root of 381364427 is about 725.1815174512.

The spelling of 381364427 in words is "three hundred eighty-one million, three hundred sixty-four thousand, four hundred twenty-seven".