423951 has 16 divisors (see below), whose sum is σ = 639360. Its totient is φ = 247520.

The previous prime is 423949. The next prime is 423961. The reversal of 423951 is 159324.

It is a cyclic number.

It is not a de Polignac number, because 423951 - 2¹ = 423949 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423931) 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, 736 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (39960).

2⁴²³⁹⁵¹ is an apocalyptic number.

423951 is a deficient number, since it is larger than the sum of its proper divisors (215409).

423951 is a wasteful number, since it uses less digits than its factorization.

423951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its digits is 1080, while the sum is 24.

The square root of 423951 is about 651.1151971810. The cubic root of 423951 is about 75.1228209792.

It can be divided in two parts, 42 and 3951, that added together give a palindrome (3993).

The spelling of 423951 in words is "four hundred twenty-three thousand, nine hundred fifty-one".