394254597371 has 2 divisors, whose sum is σ = 394254597372. Its totient is φ = 394254597370.

The previous prime is 394254597367. The next prime is 394254597379. The reversal of 394254597371 is 173795452493.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 394254597371 - 2² = 394254597367 is a prime.

It is a super-2 number, since 2×394254597371² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 394254597371.

It is not a weakly prime, because it can be changed into another prime (394254597379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197127298685 + 197127298686.

It is an arithmetic number, because the mean of its divisors is an integer number (197127298686).

Almost surely, 2^394254597371 is an apocalyptic number.

394254597371 is a deficient number, since it is larger than the sum of its proper divisors (1).

394254597371 is an equidigital number, since it uses as much as digits as its factorization.

394254597371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 59.

The spelling of 394254597371 in words is "three hundred ninety-four billion, two hundred fifty-four million, five hundred ninety-seven thousand, three hundred seventy-one".