395246447 has 4 divisors (see below), whose sum is σ = 418496256. Its totient is φ = 371996640.

The previous prime is 395246441. The next prime is 395246461. The reversal of 395246447 is 744642593.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395246447 is a prime.

It is a super-2 number, since 2×395246447² = 312439507732247618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395246398 and 395246407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395246441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11624879 + ... + 11624912.

It is an arithmetic number, because the mean of its divisors is an integer number (104624064).

Almost surely, 2^395246447 is an apocalyptic number.

395246447 is a deficient number, since it is larger than the sum of its proper divisors (23249809).

395246447 is a wasteful number, since it uses less digits than its factorization.

395246447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23249808.

The product of its digits is 725760, while the sum is 44.

The square root of 395246447 is about 19880.8059947277. The cubic root of 395246447 is about 733.8759544327.

The spelling of 395246447 in words is "three hundred ninety-five million, two hundred forty-six thousand, four hundred forty-seven".