900671643 has 10 divisors (see below), whose sum is σ = 1345447884. Its totient is φ = 600447708.

The previous prime is 900671633. The next prime is 900671677. The reversal of 900671643 is 346176009.

900671643 is a `hidden beast` number, since 9 + 0 + 0 + 6 + 7 + 1 + 643 = 666.

It is not a de Polignac number, because 900671643 - 2⁴ = 900671627 is a prime.

It is a super-2 number, since 2×900671643² = 1622418817008638898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 900671598 and 900671607.

It is not an unprimeable number, because it can be changed into a prime (900671623) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 5559621 + ... + 5559782.

Almost surely, 2^900671643 is an apocalyptic number.

900671643 is a deficient number, since it is larger than the sum of its proper divisors (444776241).

900671643 is a wasteful number, since it uses less digits than its factorization.

900671643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119415 (or 11119406 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 900671643 is about 30011.1919623330. The cubic root of 900671643 is about 965.7294968070.

The spelling of 900671643 in words is "nine hundred million, six hundred seventy-one thousand, six hundred forty-three".