8423681 has 8 divisors (see below), whose sum is σ = 10045824. Its totient is φ = 6906240.

The previous prime is 8423671. The next prime is 8423683. The reversal of 8423681 is 1863248.

8423681 = T₄₈ + T₄₉ + ... + T₃₆₉.

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 8423681 - 2⁶ = 8423617 is a prime.

It is a super-2 number, since 2×8423681² = 141916803179522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8423683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26000 + ... + 26321.

It is an arithmetic number, because the mean of its divisors is an integer number (1255728).

Almost surely, 2^8423681 is an apocalyptic number.

It is an amenable number.

8423681 is a deficient number, since it is larger than the sum of its proper divisors (1622143).

8423681 is a wasteful number, since it uses less digits than its factorization.

8423681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52351.

The product of its digits is 9216, while the sum is 32.

The square root of 8423681 is about 2902.3578345890. The cubic root of 8423681 is about 203.4701181808.

The spelling of 8423681 in words is "eight million, four hundred twenty-three thousand, six hundred eighty-one".