380870871 has 4 divisors (see below), whose sum is σ = 507827832. Its totient is φ = 253913912.

The previous prime is 380870851. The next prime is 380870911. The reversal of 380870871 is 178078083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178078083 = 3 ⋅59359361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380870871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380870801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63478476 + ... + 63478481.

It is an arithmetic number, because the mean of its divisors is an integer number (126956958).

Almost surely, 2^380870871 is an apocalyptic number.

380870871 is a deficient number, since it is larger than the sum of its proper divisors (126956961).

380870871 is a wasteful number, since it uses less digits than its factorization.

380870871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126956960.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 380870871 is about 19515.9132760934. The cubic root of 380870871 is about 724.8685427926.

The spelling of 380870871 in words is "three hundred eighty million, eight hundred seventy thousand, eight hundred seventy-one".