423953 has 4 divisors (see below), whose sum is σ = 425508. Its totient is φ = 422400.

The previous prime is 423949. The next prime is 423961. The reversal of 423953 is 359324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54289 + 369664 = 233^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 423953 - 2² = 423949 is a prime.

It is a super-2 number, since 2×423953² = 359472292418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423053) 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, 248 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (106377).

2⁴²³⁹⁵³ is an apocalyptic number.

It is an amenable number.

423953 is a deficient number, since it is larger than the sum of its proper divisors (1555).

423953 is a wasteful number, since it uses less digits than its factorization.

423953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554.

The product of its digits is 3240, while the sum is 26.

The square root of 423953 is about 651.1167330057. The cubic root of 423953 is about 75.1229391103.

The spelling of 423953 in words is "four hundred twenty-three thousand, nine hundred fifty-three".