378700393 has 2 divisors, whose sum is σ = 378700394. Its totient is φ = 378700392.

The previous prime is 378700369. The next prime is 378700397. The reversal of 378700393 is 393007873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368947264 + 9753129 = 19208^2 + 3123^2 .

It is a cyclic number.

It is not a de Polignac number, because 378700393 - 2¹³ = 378692201 is a prime.

It is not a weakly prime, because it can be changed into another prime (378700397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189350196 + 189350197.

It is an arithmetic number, because the mean of its divisors is an integer number (189350197).

Almost surely, 2^378700393 is an apocalyptic number.

It is an amenable number.

378700393 is a deficient number, since it is larger than the sum of its proper divisors (1).

378700393 is an equidigital number, since it uses as much as digits as its factorization.

378700393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 378700393 is about 19460.2259236629. The cubic root of 378700393 is about 723.4889769387.

The spelling of 378700393 in words is "three hundred seventy-eight million, seven hundred thousand, three hundred ninety-three".