900001016 has 8 divisors (see below), whose sum is σ = 1687501920. Its totient is φ = 450000504.

The previous prime is 900001009. The next prime is 900001033. The reversal of 900001016 is 610100009.

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

It is a junction number, because it is equal to n+sod(n) for n = 900000985 and 900001003.

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, 56250056 + ... + 56250071.

It is an arithmetic number, because the mean of its divisors is an integer number (210937740).

Almost surely, 2^900001016 is an apocalyptic number.

It is an amenable number.

900001016 is a deficient number, since it is larger than the sum of its proper divisors (787500904).

900001016 is a wasteful number, since it uses less digits than its factorization.

900001016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112500133 (or 112500129 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 900001016 is about 30000.0169333286. The cubic root of 900001016 is about 965.4897479156.

The spelling of 900001016 in words is "nine hundred million, one thousand, sixteen".