380784897 has 12 divisors (see below), whose sum is σ = 550243044. Its totient is φ = 253754880.

The previous prime is 380784889. The next prime is 380784931. The reversal of 380784897 is 798487083.

It can be written as a sum of positive squares in 2 ways, for example, as 325297296 + 55487601 = 18036^2 + 7449^2 .

It is not a de Polignac number, because 380784897 - 2³ = 380784889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380784697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20413 + ... + 34325.

It is an arithmetic number, because the mean of its divisors is an integer number (45853587).

Almost surely, 2^380784897 is an apocalyptic number.

It is an amenable number.

380784897 is a deficient number, since it is larger than the sum of its proper divisors (169458147).

380784897 is a wasteful number, since it uses less digits than its factorization.

380784897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16960 (or 16957 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 380784897 is about 19513.7104877571. The cubic root of 380784897 is about 724.8139971512.

The spelling of 380784897 in words is "three hundred eighty million, seven hundred eighty-four thousand, eight hundred ninety-seven".