9997019 has 16 divisors (see below), whose sum is σ = 10886400. Its totient is φ = 9156576.

The previous prime is 9997007. The next prime is 9997033. The reversal of 9997019 is 9107999.

9997019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9997019 is a prime.

It is a super-2 number, since 2×9997019² = 199880777772722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71852 + ... + 71990.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^9997019 is an apocalyptic number.

9997019 is a deficient number, since it is larger than the sum of its proper divisors (889381).

9997019 is a wasteful number, since it uses less digits than its factorization.

9997019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 9997019 is about 3161.8062875515. The cubic root of 9997019 is about 215.4220589762.

The spelling of 9997019 in words is "nine million, nine hundred ninety-seven thousand, nineteen".