164000784 has 20 divisors (see below), whose sum is σ = 423668816. Its totient is φ = 54666912.

The previous prime is 164000783. The next prime is 164000789. The reversal of 164000784 is 487000461.

It is a super-2 number, since 2×164000784² = 53792514305229312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164000783) 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 3 ways as a sum of consecutive naturals, for example, 1708294 + ... + 1708389.

Almost surely, 2^164000784 is an apocalyptic number.

It is an amenable number.

164000784 is an abundant number, since it is smaller than the sum of its proper divisors (259668032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164000784 is a wasteful number, since it uses less digits than its factorization.

164000784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416694 (or 3416688 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 164000784 is about 12806.2790848864. The cubic root of 164000784 is about 547.3712397109.

The spelling of 164000784 in words is "one hundred sixty-four million, seven hundred eighty-four", and thus it is an aban number.