387050399 has 2 divisors, whose sum is σ = 387050400. Its totient is φ = 387050398.

The previous prime is 387050383. The next prime is 387050401. The reversal of 387050399 is 993050783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387050399 - 2⁴ = 387050383 is a prime.

It is a super-2 number, since 2×387050399² = 299616022732118402, which contains 22 as substring.

Together with 387050401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387050359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193525199 + 193525200.

It is an arithmetic number, because the mean of its divisors is an integer number (193525200).

Almost surely, 2^387050399 is an apocalyptic number.

387050399 is a deficient number, since it is larger than the sum of its proper divisors (1).

387050399 is an equidigital number, since it uses as much as digits as its factorization.

387050399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 387050399 is about 19673.5964937782. The cubic root of 387050399 is about 728.7677961696.

The spelling of 387050399 in words is "three hundred eighty-seven million, fifty thousand, three hundred ninety-nine".