395637961 has 8 divisors (see below), whose sum is σ = 398702304. Its totient is φ = 392585760.

The previous prime is 395637953. The next prime is 395638013. The reversal of 395637961 is 169736593.

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 395637961 - 2³ = 395637953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395637901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68766 + ... + 74296.

It is an arithmetic number, because the mean of its divisors is an integer number (49837788).

Almost surely, 2^395637961 is an apocalyptic number.

It is an amenable number.

395637961 is a deficient number, since it is larger than the sum of its proper divisors (3064343).

395637961 is a wasteful number, since it uses less digits than its factorization.

395637961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071.

The product of its digits is 918540, while the sum is 49.

The square root of 395637961 is about 19890.6500899292. The cubic root of 395637961 is about 734.1181897056.

It can be divided in two parts, 39563 and 7961, that added together give a square (47524 = 218²).

The spelling of 395637961 in words is "three hundred ninety-five million, six hundred thirty-seven thousand, nine hundred sixty-one".