378882617 has 2 divisors, whose sum is σ = 378882618. Its totient is φ = 378882616.

The previous prime is 378882577. The next prime is 378882649. The reversal of 378882617 is 716288873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316092841 + 62789776 = 17779^2 + 7924^2 .

It is a cyclic number.

It is not a de Polignac number, because 378882617 - 2¹⁰ = 378881593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (378882817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189441308 + 189441309.

It is an arithmetic number, because the mean of its divisors is an integer number (189441309).

Almost surely, 2^378882617 is an apocalyptic number.

It is an amenable number.

378882617 is a deficient number, since it is larger than the sum of its proper divisors (1).

378882617 is an equidigital number, since it uses as much as digits as its factorization.

378882617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 50.

The square root of 378882617 is about 19464.9073206116. The cubic root of 378882617 is about 723.6050017413.

The spelling of 378882617 in words is "three hundred seventy-eight million, eight hundred eighty-two thousand, six hundred seventeen".