899652290 has 16 divisors (see below), whose sum is σ = 1620339768. Its totient is φ = 359646336.

The previous prime is 899652283. The next prime is 899652301. The reversal of 899652290 is 92256998.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 678029521 + 221622769 = 26039^2 + 14887^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8627 + ... + 43286.

Almost surely, 2^899652290 is an apocalyptic number.

899652290 is a deficient number, since it is larger than the sum of its proper divisors (720687478).

899652290 is a wasteful number, since it uses less digits than its factorization.

899652290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53653.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 899652290 is about 29994.2042734926. The cubic root of 899652290 is about 965.3650314366.

The spelling of 899652290 in words is "eight hundred ninety-nine million, six hundred fifty-two thousand, two hundred ninety".