9720225826 has 8 divisors (see below), whose sum is σ = 14586048540. Its totient is φ = 4858209648.

The previous prime is 9720225787. The next prime is 9720225923. The reversal of 9720225826 is 6285220279.

It can be written as a sum of positive squares in 2 ways, for example, as 8413475625 + 1306750201 = 91725^2 + 36149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945241 + ... + 955468.

Almost surely, 2^9720225826 is an apocalyptic number.

9720225826 is a deficient number, since it is larger than the sum of its proper divisors (4865822714).

9720225826 is a wasteful number, since it uses less digits than its factorization.

9720225826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903268.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 9720225826 is about 98591.2056220026. The cubic root of 9720225826 is about 2134.1525101172.

The spelling of 9720225826 in words is "nine billion, seven hundred twenty million, two hundred twenty-five thousand, eight hundred twenty-six".