395747505 has 32 divisors (see below), whose sum is σ = 744940800. Its totient is φ = 198648576.

The previous prime is 395747501. The next prime is 395747509. The reversal of 395747505 is 505747593.

395747505 is a `hidden beast` number, since 3 + 9 + 574 + 75 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (395747501) and next prime (395747509).

It is not a de Polignac number, because 395747505 - 2² = 395747501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (395747501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83925 + ... + 88514.

It is an arithmetic number, because the mean of its divisors is an integer number (23279400).

Almost surely, 2^395747505 is an apocalyptic number.

It is an amenable number.

395747505 is a deficient number, since it is larger than the sum of its proper divisors (349193295).

395747505 is a wasteful number, since it uses less digits than its factorization.

395747505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172470 (or 172464 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 45.

The square root of 395747505 is about 19893.4035549476. The cubic root of 395747505 is about 734.1859375205.

The spelling of 395747505 in words is "three hundred ninety-five million, seven hundred forty-seven thousand, five hundred five".