825286990 has 16 divisors (see below), whose sum is σ = 1620563760. Its totient is φ = 300104320.

The previous prime is 825286967. The next prime is 825286999. The reversal of 825286990 is 99682528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825286999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3751195 + ... + 3751414.

It is an arithmetic number, because the mean of its divisors is an integer number (101285235).

Almost surely, 2^825286990 is an apocalyptic number.

825286990 is a deficient number, since it is larger than the sum of its proper divisors (795276770).

825286990 is a wasteful number, since it uses less digits than its factorization.

825286990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502627.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 825286990 is about 28727.8086529411. The cubic root of 825286990 is about 937.9974684838.

The spelling of 825286990 in words is "eight hundred twenty-five million, two hundred eighty-six thousand, nine hundred ninety".