9975626 has 4 divisors (see below), whose sum is σ = 14963442. Its totient is φ = 4987812.

The previous prime is 9975619. The next prime is 9975631. The reversal of 9975626 is 6265799.

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

It can be written as a sum of positive squares in only one way, i.e., 6497401 + 3478225 = 2549^2 + 1865^2 .

It is a super-2 number, since 2×9975626² = 199026228183752, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2493905 + ... + 2493908.

Almost surely, 2^9975626 is an apocalyptic number.

9975626 is a deficient number, since it is larger than the sum of its proper divisors (4987816).

9975626 is a wasteful number, since it uses less digits than its factorization.

9975626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987815.

The product of its digits is 204120, while the sum is 44.

The square root of 9975626 is about 3158.4214411633. The cubic root of 9975626 is about 215.2682859585.

It can be divided in two parts, 9975 and 626, that added together give a palindrome (10601).

The spelling of 9975626 in words is "nine million, nine hundred seventy-five thousand, six hundred twenty-six".