423961931 has 8 divisors (see below), whose sum is σ = 430343760. Its totient is φ = 417625632.

The previous prime is 423961891. The next prime is 423961939. The reversal of 423961931 is 139169324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423961931 - 2²⁶ = 356853067 is a prime.

It is a super-2 number, since 2×423961931² = 359487437874497522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423961939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7616 + ... + 30098.

It is an arithmetic number, because the mean of its divisors is an integer number (53792970).

Almost surely, 2^423961931 is an apocalyptic number.

423961931 is a deficient number, since it is larger than the sum of its proper divisors (6381829).

423961931 is a wasteful number, since it uses less digits than its factorization.

423961931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22765.

The product of its digits is 34992, while the sum is 38.

The square root of 423961931 is about 20590.3358641864. The cubic root of 423961931 is about 751.2346662023.

The spelling of 423961931 in words is "four hundred twenty-three million, nine hundred sixty-one thousand, nine hundred thirty-one".