20863234 has 16 divisors (see below), whose sum is σ = 35856000. Its totient is φ = 8918784.

The previous prime is 20863229. The next prime is 20863247. The reversal of 20863234 is 43236802.

It is an unprimeable number.

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, 4627 + ... + 7945.

It is an arithmetic number, because the mean of its divisors is an integer number (2241000).

Almost surely, 2^20863234 is an apocalyptic number.

20863234 is a deficient number, since it is larger than the sum of its proper divisors (14992766).

20863234 is a wasteful number, since it uses less digits than its factorization.

20863234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 20863234 is about 4567.6289253835. The cubic root of 20863234 is about 275.2921809149.

The spelling of 20863234 in words is "twenty million, eight hundred sixty-three thousand, two hundred thirty-four".