394379801 has 2 divisors, whose sum is σ = 394379802. Its totient is φ = 394379800.

The previous prime is 394379747. The next prime is 394379813. The reversal of 394379801 is 108973493.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393427225 + 952576 = 19835^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 394379801 - 2¹⁸ = 394117657 is a prime.

It is not a weakly prime, because it can be changed into another prime (394375801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197189900 + 197189901.

It is an arithmetic number, because the mean of its divisors is an integer number (197189901).

Almost surely, 2^394379801 is an apocalyptic number.

It is an amenable number.

394379801 is a deficient number, since it is larger than the sum of its proper divisors (1).

394379801 is an equidigital number, since it uses as much as digits as its factorization.

394379801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 394379801 is about 19858.9979857998. The cubic root of 394379801 is about 733.3391787183.

The spelling of 394379801 in words is "three hundred ninety-four million, three hundred seventy-nine thousand, eight hundred one".