423434553 has 4 divisors (see below), whose sum is σ = 564579408. Its totient is φ = 282289700.

The previous prime is 423434533. The next prime is 423434579. The reversal of 423434553 is 355434324.

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 a cyclic number.

It is not a de Polignac number, because 423434553 - 2¹⁴ = 423418169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423434503) 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, 70572423 + ... + 70572428.

It is an arithmetic number, because the mean of its divisors is an integer number (141144852).

Almost surely, 2^423434553 is an apocalyptic number.

It is an amenable number.

423434553 is a deficient number, since it is larger than the sum of its proper divisors (141144855).

423434553 is a wasteful number, since it uses less digits than its factorization.

423434553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141144854.

The product of its digits is 86400, while the sum is 33.

The square root of 423434553 is about 20577.5254343179. The cubic root of 423434553 is about 750.9230430782.

Adding to 423434553 its reverse (355434324), we get a palindrome (778868877).

The spelling of 423434553 in words is "four hundred twenty-three million, four hundred thirty-four thousand, five hundred fifty-three".