423017287 has 16 divisors (see below), whose sum is σ = 545587200. Its totient is φ = 318255840.

The previous prime is 423017281. The next prime is 423017303. The reversal of 423017287 is 782710324.

It is not a de Polignac number, because 423017287 - 2¹¹ = 423015239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423017281) 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 15 ways as a sum of consecutive naturals, for example, 92487 + ... + 96952.

It is an arithmetic number, because the mean of its divisors is an integer number (34099200).

Almost surely, 2^423017287 is an apocalyptic number.

423017287 is a deficient number, since it is larger than the sum of its proper divisors (122569913).

423017287 is a wasteful number, since it uses less digits than its factorization.

423017287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189486.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 423017287 is about 20567.3840582608. The cubic root of 423017287 is about 750.6763007878.

The spelling of 423017287 in words is "four hundred twenty-three million, seventeen thousand, two hundred eighty-seven".