423712869 has 16 divisors (see below), whose sum is σ = 569617920. Its totient is φ = 280150640.

The previous prime is 423712859. The next prime is 423712897. The reversal of 423712869 is 968217324.

It is a cyclic number.

It is not a de Polignac number, because 423712869 - 2⁴ = 423712853 is a prime.

It is a super-2 number, since 2×423712869² = 359065190712422322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423712869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423712859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262864 + ... + 264470.

It is an arithmetic number, because the mean of its divisors is an integer number (35601120).

Almost surely, 2^423712869 is an apocalyptic number.

It is an amenable number.

423712869 is a deficient number, since it is larger than the sum of its proper divisors (145905051).

423712869 is a wasteful number, since it uses less digits than its factorization.

423712869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280.

The product of its digits is 145152, while the sum is 42.

The square root of 423712869 is about 20584.2869441718. The cubic root of 423712869 is about 751.0875298318.

It can be divided in two parts, 423712 and 869, that added together give a triangular number (424581 = T₉₂₁).

The spelling of 423712869 in words is "four hundred twenty-three million, seven hundred twelve thousand, eight hundred sixty-nine".