19970002 has 16 divisors (see below), whose sum is σ = 34157592. Its totient is φ = 8674560.

The previous prime is 19969987. The next prime is 19970011. The reversal of 19970002 is 20007991.

It can be written as a sum of positive squares in 4 ways, for example, as 11095561 + 8874441 = 3331^2 + 2979^2 .

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, 22149 + ... + 23032.

Almost surely, 2^19970002 is an apocalyptic number.

19970002 is a deficient number, since it is larger than the sum of its proper divisors (14187590).

19970002 is a wasteful number, since it uses less digits than its factorization.

19970002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45213.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 19970002 is about 4468.7808180756. The cubic root of 19970002 is about 271.3059819187.

Adding to 19970002 its reverse (20007991), we get a palindrome (39977993).

The spelling of 19970002 in words is "nineteen million, nine hundred seventy thousand, two".