387061999 has 2 divisors, whose sum is σ = 387062000. Its totient is φ = 387061998.

The previous prime is 387061957. The next prime is 387062003. The reversal of 387061999 is 999160783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387061999 - 2⁹ = 387061487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387061099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193530999 + 193531000.

It is an arithmetic number, because the mean of its divisors is an integer number (193531000).

Almost surely, 2^387061999 is an apocalyptic number.

387061999 is a deficient number, since it is larger than the sum of its proper divisors (1).

387061999 is an equidigital number, since it uses as much as digits as its factorization.

387061999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 387061999 is about 19673.8913029426. The cubic root of 387061999 is about 728.7750765496.

The spelling of 387061999 in words is "three hundred eighty-seven million, sixty-one thousand, nine hundred ninety-nine".