163649713 has 8 divisors (see below), whose sum is σ = 169078016. Its totient is φ = 158230800.

The previous prime is 163649699. The next prime is 163649749. The reversal of 163649713 is 317946361.

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 163649713 - 2¹³ = 163641521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163649513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58558 + ... + 61288.

It is an arithmetic number, because the mean of its divisors is an integer number (21134752).

Almost surely, 2^163649713 is an apocalyptic number.

It is an amenable number.

163649713 is a deficient number, since it is larger than the sum of its proper divisors (5428303).

163649713 is a wasteful number, since it uses less digits than its factorization.

163649713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695.

The product of its digits is 81648, while the sum is 40.

The square root of 163649713 is about 12792.5647545752. The cubic root of 163649713 is about 546.9803809025.

The spelling of 163649713 in words is "one hundred sixty-three million, six hundred forty-nine thousand, seven hundred thirteen".