8725343421 has 8 divisors (see below), whose sum is σ = 12009074944. Its totient is φ = 5629253760.

The previous prime is 8725343399. The next prime is 8725343447. The reversal of 8725343421 is 1243435278.

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

It is not a de Polignac number, because 8725343421 - 2⁹ = 8725342909 is a prime.

It is a super-2 number, since 2×8725343421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8725343421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725343461) 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, 46910356 + ... + 46910541.

It is an arithmetic number, because the mean of its divisors is an integer number (1501134368).

Almost surely, 2^8725343421 is an apocalyptic number.

It is an amenable number.

8725343421 is a deficient number, since it is larger than the sum of its proper divisors (3283731523).

8725343421 is a wasteful number, since it uses less digits than its factorization.

8725343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93820931.

The product of its digits is 161280, while the sum is 39.

The square root of 8725343421 is about 93409.5467337252. The cubic root of 8725343421 is about 2058.7052709565.

Adding to 8725343421 its reverse (1243435278), we get a palindrome (9968778699).

The spelling of 8725343421 in words is "eight billion, seven hundred twenty-five million, three hundred forty-three thousand, four hundred twenty-one".