423237 has 4 divisors (see below), whose sum is σ = 564320. Its totient is φ = 282156.

The previous prime is 423233. The next prime is 423251. The reversal of 423237 is 732324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 423237 - 2² = 423233 is a prime.

It is a D-number.

It is a Duffinian number.

423237 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423237.

It is not an unprimeable number, because it can be changed into a prime (423233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70537 + ... + 70542.

It is an arithmetic number, because the mean of its divisors is an integer number (141080).

2⁴²³²³⁷ is an apocalyptic number.

It is an amenable number.

423237 is a deficient number, since it is larger than the sum of its proper divisors (141083).

423237 is a wasteful number, since it uses less digits than its factorization.

423237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141082.

The product of its digits is 1008, while the sum is 21.

The square root of 423237 is about 650.5666760602. The cubic root of 423237 is about 75.0806244094.

The spelling of 423237 in words is "four hundred twenty-three thousand, two hundred thirty-seven".