380143847 has 2 divisors, whose sum is σ = 380143848. Its totient is φ = 380143846.

The previous prime is 380143843. The next prime is 380143891. The reversal of 380143847 is 748341083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380143847 - 2² = 380143843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380143847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380143843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190071923 + 190071924.

It is an arithmetic number, because the mean of its divisors is an integer number (190071924).

Almost surely, 2^380143847 is an apocalyptic number.

380143847 is a deficient number, since it is larger than the sum of its proper divisors (1).

380143847 is an equidigital number, since it uses as much as digits as its factorization.

380143847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 380143847 is about 19497.2779382149. The cubic root of 380143847 is about 724.4070281059.

The spelling of 380143847 in words is "three hundred eighty million, one hundred forty-three thousand, eight hundred forty-seven".