3163640447 has 8 divisors (see below), whose sum is σ = 3471195600. Its totient is φ = 2859410560.

The previous prime is 3163640323. The next prime is 3163640477. The reversal of 3163640447 is 7440463613.

It is a happy number.

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 3163640447 - 2¹⁴ = 3163624063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3163640447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3163640477) 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, 829322 + ... + 833127.

It is an arithmetic number, because the mean of its divisors is an integer number (433899450).

Almost surely, 2^3163640447 is an apocalyptic number.

3163640447 is a deficient number, since it is larger than the sum of its proper divisors (307555153).

3163640447 is a wasteful number, since it uses less digits than its factorization.

3163640447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662633.

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 3163640447 is about 56246.2482926639. The cubic root of 3163640447 is about 1468.0100872120.

The spelling of 3163640447 in words is "three billion, one hundred sixty-three million, six hundred forty thousand, four hundred forty-seven".