163626947 has 16 divisors (see below), whose sum is σ = 181585152. Its totient is φ = 146202720.

The previous prime is 163626929. The next prime is 163626971. The reversal of 163626947 is 749626361.

It is a cyclic number.

It is not a de Polignac number, because 163626947 - 2²² = 159432643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163626898 and 163626907.

It is not an unprimeable number, because it can be changed into a prime (163626907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252578 + ... + 253224.

It is an arithmetic number, because the mean of its divisors is an integer number (11349072).

Almost surely, 2^163626947 is an apocalyptic number.

163626947 is a deficient number, since it is larger than the sum of its proper divisors (17958205).

163626947 is a wasteful number, since it uses less digits than its factorization.

163626947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its digits is 326592, while the sum is 44.

The square root of 163626947 is about 12791.6749098779. The cubic root of 163626947 is about 546.9550154790.

The spelling of 163626947 in words is "one hundred sixty-three million, six hundred twenty-six thousand, nine hundred forty-seven".