8708266421 has 8 divisors (see below), whose sum is σ = 9031721400. Its totient is φ = 8386356160.

The previous prime is 8708266403. The next prime is 8708266423. The reversal of 8708266421 is 1246628078.

It can be written as a sum of positive squares in 4 ways, for example, as 1873937521 + 6834328900 = 43289^2 + 82670^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8708266421 is a prime.

It is a super-2 number, since 2×8708266421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8708266423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374690 + ... + 397251.

It is an arithmetic number, because the mean of its divisors is an integer number (1128965175).

Almost surely, 2^8708266421 is an apocalyptic number.

It is an amenable number.

8708266421 is a deficient number, since it is larger than the sum of its proper divisors (323454979).

8708266421 is a wasteful number, since it uses less digits than its factorization.

8708266421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772359.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 8708266421 is about 93318.0926776796. The cubic root of 8708266421 is about 2057.3613135148.

The spelling of 8708266421 in words is "eight billion, seven hundred eight million, two hundred sixty-six thousand, four hundred twenty-one".