9780252826 has 8 divisors (see below), whose sum is σ = 14751431604. Its totient is φ = 4863108960.

The previous prime is 9780252817. The next prime is 9780252893. The reversal of 9780252826 is 6282520879.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9768357225 + 11895601 = 98835^2 + 3449^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 9780252826.

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, 13508275 + ... + 13508998.

Almost surely, 2^9780252826 is an apocalyptic number.

9780252826 is a deficient number, since it is larger than the sum of its proper divisors (4971178778).

9780252826 is a wasteful number, since it uses less digits than its factorization.

9780252826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27017456.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 9780252826 is about 98895.1607815064. The cubic root of 9780252826 is about 2138.5366320969.

The spelling of 9780252826 in words is "nine billion, seven hundred eighty million, two hundred fifty-two thousand, eight hundred twenty-six".