423735688 has 8 divisors (see below), whose sum is σ = 794504430. Its totient is φ = 211867840.

The previous prime is 423735643. The next prime is 423735709. The reversal of 423735688 is 886537324.

It can be written as a sum of positive squares in only one way, i.e., 423618724 + 116964 = 20582^2 + 342^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26483473 + ... + 26483488.

Almost surely, 2^423735688 is an apocalyptic number.

It is an amenable number.

423735688 is a deficient number, since it is larger than the sum of its proper divisors (370768742).

423735688 is a wasteful number, since it uses less digits than its factorization.

423735688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52966967 (or 52966963 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 423735688 is about 20584.8412187221. The cubic root of 423735688 is about 751.1010128293.

The spelling of 423735688 in words is "four hundred twenty-three million, seven hundred thirty-five thousand, six hundred eighty-eight".