394260497 has 2 divisors, whose sum is σ = 394260498. Its totient is φ = 394260496.

The previous prime is 394260467. The next prime is 394260523. The reversal of 394260497 is 794062493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287675521 + 106584976 = 16961^2 + 10324^2 .

It is a cyclic number.

It is not a de Polignac number, because 394260497 - 2¹⁶ = 394194961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (394260467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197130248 + 197130249.

It is an arithmetic number, because the mean of its divisors is an integer number (197130249).

Almost surely, 2^394260497 is an apocalyptic number.

It is an amenable number.

394260497 is a deficient number, since it is larger than the sum of its proper divisors (1).

394260497 is an equidigital number, since it uses as much as digits as its factorization.

394260497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 394260497 is about 19855.9939816671. The cubic root of 394260497 is about 733.2652236790.

The spelling of 394260497 in words is "three hundred ninety-four million, two hundred sixty thousand, four hundred ninety-seven".