423737685 has 48 divisors (see below), whose sum is σ = 841067136. Its totient is φ = 193325184.

The previous prime is 423737663. The next prime is 423737689. The reversal of 423737685 is 586737324.

It is not a de Polignac number, because 423737685 - 2⁷ = 423737557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 423737685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423737689) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212262 + ... + 214248.

It is an arithmetic number, because the mean of its divisors is an integer number (17522232).

Almost surely, 2^423737685 is an apocalyptic number.

423737685 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423737685 is a deficient number, since it is larger than the sum of its proper divisors (417329451).

423737685 is a wasteful number, since it uses less digits than its factorization.

423737685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682 (or 2679 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 423737685 is about 20584.8897252329. The cubic root of 423737685 is about 751.1021927680.

The spelling of 423737685 in words is "four hundred twenty-three million, seven hundred thirty-seven thousand, six hundred eighty-five".