387398357 has 4 divisors (see below), whose sum is σ = 387497100. Its totient is φ = 387299616.

The previous prime is 387398339. The next prime is 387398411. The reversal of 387398357 is 753893783.

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

It can be written as a sum of positive squares in 2 ways, for example, as 298114756 + 89283601 = 17266^2 + 9449^2 .

It is a cyclic number.

It is not a de Polignac number, because 387398357 - 2¹⁰ = 387397333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387398299 and 387398308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387397357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43232 + ... + 51417.

It is an arithmetic number, because the mean of its divisors is an integer number (96874275).

Almost surely, 2^387398357 is an apocalyptic number.

It is an amenable number.

387398357 is a deficient number, since it is larger than the sum of its proper divisors (98743).

387398357 is an equidigital number, since it uses as much as digits as its factorization.

387398357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98742.

The product of its digits is 3810240, while the sum is 53.

The square root of 387398357 is about 19682.4377809254. The cubic root of 387398357 is about 728.9861179815.

The spelling of 387398357 in words is "three hundred eighty-seven million, three hundred ninety-eight thousand, three hundred fifty-seven".