423619831 has 16 divisors (see below), whose sum is σ = 444165120. Its totient is φ = 403636480.

The previous prime is 423619811. The next prime is 423619841. The reversal of 423619831 is 138916324.

It is a cyclic number.

It is not a de Polignac number, because 423619831 - 2¹¹ = 423617783 is a prime.

It is a super-2 number, since 2×423619831² = 358907522432937122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423619811) 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, 832005 + ... + 832513.

It is an arithmetic number, because the mean of its divisors is an integer number (27760320).

Almost surely, 2^423619831 is an apocalyptic number.

423619831 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

423619831 is a deficient number, since it is larger than the sum of its proper divisors (20545289).

423619831 is a wasteful number, since it uses less digits than its factorization.

423619831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its digits is 31104, while the sum is 37.

The square root of 423619831 is about 20582.0268924127. The cubic root of 423619831 is about 751.0325517228.

The spelling of 423619831 in words is "four hundred twenty-three million, six hundred nineteen thousand, eight hundred thirty-one".