9920626 has 4 divisors (see below), whose sum is σ = 14880942. Its totient is φ = 4960312.

The previous prime is 9920621. The next prime is 9920653. The reversal of 9920626 is 6260299.

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., 5085025 + 4835601 = 2255^2 + 2199^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9920591 and 9920600.

It is not an unprimeable number, because it can be changed into a prime (9920621) 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 as a sum of consecutive naturals, namely, 2480155 + ... + 2480158.

Almost surely, 2^9920626 is an apocalyptic number.

9920626 is a deficient number, since it is larger than the sum of its proper divisors (4960316).

9920626 is a wasteful number, since it uses less digits than its factorization.

9920626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960315.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 9920626 is about 3149.7025256363. The cubic root of 9920626 is about 214.8719338272.

The spelling of 9920626 in words is "nine million, nine hundred twenty thousand, six hundred twenty-six".