379943887 has 2 divisors, whose sum is σ = 379943888. Its totient is φ = 379943886.

The previous prime is 379943873. The next prime is 379943951. The reversal of 379943887 is 788349973.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-379943887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379943087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189971943 + 189971944.

It is an arithmetic number, because the mean of its divisors is an integer number (189971944).

Almost surely, 2^379943887 is an apocalyptic number.

379943887 is a deficient number, since it is larger than the sum of its proper divisors (1).

379943887 is an equidigital number, since it uses as much as digits as its factorization.

379943887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9144576, while the sum is 58.

The square root of 379943887 is about 19492.1493683996. The cubic root of 379943887 is about 724.2799903753.

The spelling of 379943887 in words is "three hundred seventy-nine million, nine hundred forty-three thousand, eight hundred eighty-seven".