9961526 has 4 divisors (see below), whose sum is σ = 14942292. Its totient is φ = 4980762.

The previous prime is 9961519. The next prime is 9961531. The reversal of 9961526 is 6251699.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9961526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2490380 + ... + 2490383.

It is an arithmetic number, because the mean of its divisors is an integer number (3735573).

Almost surely, 2^9961526 is an apocalyptic number.

9961526 is a deficient number, since it is larger than the sum of its proper divisors (4980766).

9961526 is a wasteful number, since it uses less digits than its factorization.

9961526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980765.

The product of its digits is 29160, while the sum is 38.

The square root of 9961526 is about 3156.1885241538. The cubic root of 9961526 is about 215.1668148320.

It can be divided in two parts, 996 and 1526, that multiplied together give a triangular number (1519896 = T₁₇₄₃).

The spelling of 9961526 in words is "nine million, nine hundred sixty-one thousand, five hundred twenty-six".