378916801 has 2 divisors, whose sum is σ = 378916802. Its totient is φ = 378916800.

The previous prime is 378916777. The next prime is 378916843. The reversal of 378916801 is 108619873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376360000 + 2556801 = 19400^2 + 1599^2 .

It is a cyclic number.

It is not a de Polignac number, because 378916801 - 2⁷ = 378916673 is a prime.

It is not a weakly prime, because it can be changed into another prime (378916891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189458400 + 189458401.

It is an arithmetic number, because the mean of its divisors is an integer number (189458401).

Almost surely, 2^378916801 is an apocalyptic number.

It is an amenable number.

378916801 is a deficient number, since it is larger than the sum of its proper divisors (1).

378916801 is an equidigital number, since it uses as much as digits as its factorization.

378916801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 378916801 is about 19465.7853938648. The cubic root of 378916801 is about 723.6267630718.

The spelling of 378916801 in words is "three hundred seventy-eight million, nine hundred sixteen thousand, eight hundred one".