423467986 has 12 divisors (see below), whose sum is σ = 647421642. Its totient is φ = 207736256.

The previous prime is 423467981. The next prime is 423467987. The reversal of 423467986 is 689764324.

It can be written as a sum of positive squares in 3 ways, for example, as 421521961 + 1946025 = 20531^2 + 1395^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423467981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32071 + ... + 43306.

Almost surely, 2^423467986 is an apocalyptic number.

423467986 is a deficient number, since it is larger than the sum of its proper divisors (223953656).

423467986 is an equidigital number, since it uses as much as digits as its factorization.

423467986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75485 (or 75432 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 423467986 is about 20578.3377851565. The cubic root of 423467986 is about 750.9428060295.

The spelling of 423467986 in words is "four hundred twenty-three million, four hundred sixty-seven thousand, nine hundred eighty-six".