394607724053 has 4 divisors (see below), whose sum is σ = 400013309388. Its totient is φ = 389202138720.

The previous prime is 394607723981. The next prime is 394607724061. The reversal of 394607724053 is 350427706493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152379368164 + 242228355889 = 390358^2 + 492167^2 .

It is a cyclic number.

It is not a de Polignac number, because 394607724053 - 2³⁰ = 393533982229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394607723992 and 394607724010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394607724083) 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 in 3 ways as a sum of consecutive naturals, for example, 2702792558 + ... + 2702792703.

It is an arithmetic number, because the mean of its divisors is an integer number (100003327347).

Almost surely, 2^394607724053 is an apocalyptic number.

It is an amenable number.

394607724053 is a deficient number, since it is larger than the sum of its proper divisors (5405585335).

394607724053 is an equidigital number, since it uses as much as digits as its factorization.

394607724053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405585334.

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 394607724053 in words is "three hundred ninety-four billion, six hundred seven million, seven hundred twenty-four thousand, fifty-three".