890203064 has 8 divisors (see below), whose sum is σ = 1669130760. Its totient is φ = 445101528.

The previous prime is 890203021. The next prime is 890203087. The reversal of 890203064 is 460302098.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×890203064² = 1584922990309976192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 890203064.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 55637684 + ... + 55637699.

It is an arithmetic number, because the mean of its divisors is an integer number (208641345).

Almost surely, 2^890203064 is an apocalyptic number.

It is an amenable number.

890203064 is a deficient number, since it is larger than the sum of its proper divisors (778927696).

890203064 is a wasteful number, since it uses less digits than its factorization.

890203064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111275389 (or 111275385 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 890203064 is about 29836.2709466180. The cubic root of 890203064 is about 961.9733223354.

The spelling of 890203064 in words is "eight hundred ninety million, two hundred three thousand, sixty-four".