394752513 has 8 divisors (see below), whose sum is σ = 538577248. Its totient is φ = 257048064.

The previous prime is 394752511. The next prime is 394752521. The reversal of 394752513 is 315257493.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 394752513 - 2¹ = 394752511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394752511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529920 + ... + 1530177.

It is an arithmetic number, because the mean of its divisors is an integer number (67322156).

Almost surely, 2^394752513 is an apocalyptic number.

It is an amenable number.

394752513 is a deficient number, since it is larger than the sum of its proper divisors (143824735).

394752513 is a wasteful number, since it uses less digits than its factorization.

394752513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060143.

The product of its digits is 113400, while the sum is 39.

The square root of 394752513 is about 19868.3797275973. The cubic root of 394752513 is about 733.5701221338.

The spelling of 394752513 in words is "three hundred ninety-four million, seven hundred fifty-two thousand, five hundred thirteen".