19964102 has 4 divisors (see below), whose sum is σ = 29946156. Its totient is φ = 9982050.

The previous prime is 19964099. The next prime is 19964111. The reversal of 19964102 is 20146991.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4991024 + ... + 4991027.

It is an arithmetic number, because the mean of its divisors is an integer number (7486539).

Almost surely, 2^19964102 is an apocalyptic number.

19964102 is a deficient number, since it is larger than the sum of its proper divisors (9982054).

19964102 is an equidigital number, since it uses as much as digits as its factorization.

19964102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9982053.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 19964102 is about 4468.1206340026. The cubic root of 19964102 is about 271.2792607904.

The spelling of 19964102 in words is "nineteen million, nine hundred sixty-four thousand, one hundred two".