423256733 has 4 divisors (see below), whose sum is σ = 436910208. Its totient is φ = 409603260.

The previous prime is 423256699. The next prime is 423256751. The reversal of 423256733 is 337652324.

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 423256733 - 2¹⁸ = 422994589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423256693 and 423256702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423256763) 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, 6826691 + ... + 6826752.

It is an arithmetic number, because the mean of its divisors is an integer number (109227552).

Almost surely, 2^423256733 is an apocalyptic number.

It is an amenable number.

423256733 is a deficient number, since it is larger than the sum of its proper divisors (13653475).

423256733 is a wasteful number, since it uses less digits than its factorization.

423256733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13653474.

The product of its digits is 90720, while the sum is 35.

The square root of 423256733 is about 20573.2042472727. The cubic root of 423256733 is about 750.8179124421.

The spelling of 423256733 in words is "four hundred twenty-three million, two hundred fifty-six thousand, seven hundred thirty-three".