387079393 has 2 divisors, whose sum is σ = 387079394. Its totient is φ = 387079392.

The previous prime is 387079391. The next prime is 387079411. The reversal of 387079393 is 393970783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386987584 + 91809 = 19672^2 + 303^2 .

It is a cyclic number.

It is not a de Polignac number, because 387079393 - 2¹ = 387079391 is a prime.

Together with 387079391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (387079391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193539696 + 193539697.

It is an arithmetic number, because the mean of its divisors is an integer number (193539697).

Almost surely, 2^387079393 is an apocalyptic number.

It is an amenable number.

387079393 is a deficient number, since it is larger than the sum of its proper divisors (1).

387079393 is an equidigital number, since it uses as much as digits as its factorization.

387079393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 49.

The square root of 387079393 is about 19674.3333559234. Note that the first 4 decimals coincide. The cubic root of 387079393 is about 728.7859930814.

The spelling of 387079393 in words is "three hundred eighty-seven million, seventy-nine thousand, three hundred ninety-three".