427903133 has 16 divisors (see below), whose sum is σ = 501600000. Its totient is φ = 364872816.

The previous prime is 427903127. The next prime is 427903163. The reversal of 427903133 is 331309724.

It is not a de Polignac number, because 427903133 - 2¹⁰ = 427902109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 427903133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427903163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65123 + ... + 71391.

It is an arithmetic number, because the mean of its divisors is an integer number (31350000).

Almost surely, 2^427903133 is an apocalyptic number.

It is an amenable number.

427903133 is a deficient number, since it is larger than the sum of its proper divisors (73696867).

427903133 is an equidigital number, since it uses as much as digits as its factorization.

427903133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489 (or 6475 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 427903133 is about 20685.8196115117. The cubic root of 427903133 is about 753.5553463475. Note that the first 3 decimals are identical.

The spelling of 427903133 in words is "four hundred twenty-seven million, nine hundred three thousand, one hundred thirty-three".