380759987 has 4 divisors (see below), whose sum is σ = 387002016. Its totient is φ = 374517960.

The previous prime is 380759983. The next prime is 380759993. The reversal of 380759987 is 789957083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789957083 = 23689 ⋅33347.

It is a cyclic number.

It is not a de Polignac number, because 380759987 - 2² = 380759983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380759983) 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 in 3 ways as a sum of consecutive naturals, for example, 3120923 + ... + 3121044.

It is an arithmetic number, because the mean of its divisors is an integer number (96750504).

Almost surely, 2^380759987 is an apocalyptic number.

380759987 is a deficient number, since it is larger than the sum of its proper divisors (6242029).

380759987 is an equidigital number, since it uses as much as digits as its factorization.

380759987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242028.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 380759987 is about 19513.0722081378. The cubic root of 380759987 is about 724.7981916308.

The spelling of 380759987 in words is "three hundred eighty million, seven hundred fifty-nine thousand, nine hundred eighty-seven".