16464393 has 24 divisors (see below), whose sum is σ = 27312480. Its totient is φ = 9452160.

The previous prime is 16464367. The next prime is 16464401. The reversal of 16464393 is 39346461.

16464393 is a `hidden beast` number, since 1 + 6 + 4 + 643 + 9 + 3 = 666.

It is not a de Polignac number, because 16464393 - 2¹⁶ = 16398857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16464323) 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 23 ways as a sum of consecutive naturals, for example, 2496 + ... + 6257.

It is an arithmetic number, because the mean of its divisors is an integer number (1138020).

Almost surely, 2^16464393 is an apocalyptic number.

It is an amenable number.

16464393 is a deficient number, since it is larger than the sum of its proper divisors (10848087).

16464393 is a wasteful number, since it uses less digits than its factorization.

16464393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8789 (or 8786 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 16464393 is about 4057.6339164592. The cubic root of 16464393 is about 254.3989071538.

The spelling of 16464393 in words is "sixteen million, four hundred sixty-four thousand, three hundred ninety-three".