19773996 has 24 divisors (see below), whose sum is σ = 50334144. Its totient is φ = 5992080.

The previous prime is 19773979. The next prime is 19774061. The reversal of 19773996 is 69937791.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 74770 + ... + 75033.

It is an arithmetic number, because the mean of its divisors is an integer number (2097256).

Almost surely, 2^19773996 is an apocalyptic number.

It is an amenable number.

19773996 is an abundant number, since it is smaller than the sum of its proper divisors (30560148).

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

19773996 is a wasteful number, since it uses less digits than its factorization.

19773996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149821 (or 149819 counting only the distinct ones).

The product of its digits is 642978, while the sum is 51.

The square root of 19773996 is about 4446.7961500388. The cubic root of 19773996 is about 270.4154372744.

The spelling of 19773996 in words is "nineteen million, seven hundred seventy-three thousand, nine hundred ninety-six".