163764004 has 12 divisors (see below), whose sum is σ = 293577228. Its totient is φ = 79884800.

The previous prime is 163764001. The next prime is 163764037. The reversal of 163764004 is 400467361.

It can be written as a sum of positive squares in 2 ways, for example, as 17305600 + 146458404 = 4160^2 + 12102^2 .

It is a super-2 number, since 2×163764004² = 53637298012224032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163764001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499117 + ... + 499444.

It is an arithmetic number, because the mean of its divisors is an integer number (24464769).

Almost surely, 2^163764004 is an apocalyptic number.

It is an amenable number.

163764004 is a deficient number, since it is larger than the sum of its proper divisors (129813224).

163764004 is a wasteful number, since it uses less digits than its factorization.

163764004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998606 (or 998604 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 163764004 is about 12797.0310619300. The cubic root of 163764004 is about 547.1076861204.

The spelling of 163764004 in words is "one hundred sixty-three million, seven hundred sixty-four thousand, four".