900803947 has 18 divisors (see below), whose sum is σ = 968437932. Its totient is φ = 837371304.

The previous prime is 900803933. The next prime is 900803971. The reversal of 900803947 is 749308009.

It is not a de Polignac number, because 900803947 - 2²³ = 892415339 is a prime.

It is a super-2 number, since 2×900803947² = 1622895501861557618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900803987) 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 17 ways as a sum of consecutive naturals, for example, 4526554 + ... + 4526752.

Almost surely, 2^900803947 is an apocalyptic number.

900803947 is a deficient number, since it is larger than the sum of its proper divisors (67633985).

900803947 is an equidigital number, since it uses as much as digits as its factorization.

900803947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 900803947 is about 30013.3961257303. The cubic root of 900803947 is about 965.7767813791.

The spelling of 900803947 in words is "nine hundred million, eight hundred three thousand, nine hundred forty-seven".