395866493 has 8 divisors (see below), whose sum is σ = 435256320. Its totient is φ = 357043680.

The previous prime is 395866489. The next prime is 395866511. The reversal of 395866493 is 394668593.

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

It is a cyclic number.

It is not a de Polignac number, because 395866493 - 2² = 395866489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395866423) 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 7 ways as a sum of consecutive naturals, for example, 140288 + ... + 143081.

It is an arithmetic number, because the mean of its divisors is an integer number (54407040).

Almost surely, 2^395866493 is an apocalyptic number.

It is an amenable number.

395866493 is a deficient number, since it is larger than the sum of its proper divisors (39389827).

395866493 is a wasteful number, since it uses less digits than its factorization.

395866493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283507.

The product of its digits is 4199040, while the sum is 53.

The square root of 395866493 is about 19896.3939697625. The cubic root of 395866493 is about 734.2595118419.

The spelling of 395866493 in words is "three hundred ninety-five million, eight hundred sixty-six thousand, four hundred ninety-three".