385949387 has 2 divisors, whose sum is σ = 385949388. Its totient is φ = 385949386.

The previous prime is 385949329. The next prime is 385949423. The reversal of 385949387 is 783949583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385949387 - 2¹² = 385945291 is a prime.

It is not a weakly prime, because it can be changed into another prime (385949327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192974693 + 192974694.

It is an arithmetic number, because the mean of its divisors is an integer number (192974694).

Almost surely, 2^385949387 is an apocalyptic number.

385949387 is a deficient number, since it is larger than the sum of its proper divisors (1).

385949387 is an equidigital number, since it uses as much as digits as its factorization.

385949387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The square root of 385949387 is about 19645.5945952267. The cubic root of 385949387 is about 728.0761169808.

The spelling of 385949387 in words is "three hundred eighty-five million, nine hundred forty-nine thousand, three hundred eighty-seven".