423287387 has 8 divisors (see below), whose sum is σ = 427499520. Its totient is φ = 419092200.

The previous prime is 423287383. The next prime is 423287401. The reversal of 423287387 is 783782324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423287387 - 2² = 423287383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423287383) 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 7 ways as a sum of consecutive naturals, for example, 49262 + ... + 57212.

It is an arithmetic number, because the mean of its divisors is an integer number (53437440).

Almost surely, 2^423287387 is an apocalyptic number.

423287387 is a deficient number, since it is larger than the sum of its proper divisors (4212133).

423287387 is a wasteful number, since it uses less digits than its factorization.

423287387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473.

The product of its digits is 451584, while the sum is 44.

The square root of 423287387 is about 20573.9492319778. The cubic root of 423287387 is about 750.8360377822.

It can be divided in two parts, 4232 and 87387, that added together give a palindrome (91619).

The spelling of 423287387 in words is "four hundred twenty-three million, two hundred eighty-seven thousand, three hundred eighty-seven".