423207785 has 48 divisors (see below), whose sum is σ = 687122688. Its totient is φ = 243492480.

The previous prime is 423207769. The next prime is 423207803. The reversal of 423207785 is 587702324.

It is not a de Polignac number, because 423207785 - 2⁴ = 423207769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51212 + ... + 58898.

It is an arithmetic number, because the mean of its divisors is an integer number (14315056).

Almost surely, 2^423207785 is an apocalyptic number.

It is an amenable number.

423207785 is a deficient number, since it is larger than the sum of its proper divisors (263914903).

423207785 is a wasteful number, since it uses less digits than its factorization.

423207785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734 (or 7723 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 423207785 is about 20572.0146072279. The cubic root of 423207785 is about 750.7889682663.

It can be divided in two parts, 42320 and 7785, that added together give a palindrome (50105).

The spelling of 423207785 in words is "four hundred twenty-three million, two hundred seven thousand, seven hundred eighty-five".