423011689 has 4 divisors (see below), whose sum is σ = 423321156. Its totient is φ = 422702224.

The previous prime is 423011671. The next prime is 423011737. The reversal of 423011689 is 986110324.

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 350625625 + 72386064 = 18725^2 + 8508^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423011689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423011489) 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, 152674 + ... + 155419.

It is an arithmetic number, because the mean of its divisors is an integer number (105830289).

Almost surely, 2^423011689 is an apocalyptic number.

It is an amenable number.

423011689 is a deficient number, since it is larger than the sum of its proper divisors (309467).

423011689 is a wasteful number, since it uses less digits than its factorization.

423011689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309466.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 423011689 is about 20567.2479685543. The cubic root of 423011689 is about 750.6729894145.

The spelling of 423011689 in words is "four hundred twenty-three million, eleven thousand, six hundred eighty-nine".