9970919 has 4 divisors (see below), whose sum is σ = 11395344. Its totient is φ = 8546496.

The previous prime is 9970907. The next prime is 9970951. The reversal of 9970919 is 9190799.

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

It is not a de Polignac number, because 9970919 - 2¹² = 9966823 is a prime.

It is a super-2 number, since 2×9970919² = 198838451409122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9970919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9970019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 712202 + ... + 712215.

It is an arithmetic number, because the mean of its divisors is an integer number (2848836).

Almost surely, 2^9970919 is an apocalyptic number.

9970919 is a deficient number, since it is larger than the sum of its proper divisors (1424425).

9970919 is a wasteful number, since it uses less digits than its factorization.

9970919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424424.

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

The square root of 9970919 is about 3157.6762025262. The cubic root of 9970919 is about 215.2344225119.

The spelling of 9970919 in words is "nine million, nine hundred seventy thousand, nine hundred nineteen".