8337421836 has 36 divisors (see below), whose sum is σ = 21081550672. Its totient is φ = 2778296544.

The previous prime is 8337421817. The next prime is 8337421853. The reversal of 8337421836 is 6381247338.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8337421836² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8337421791 and 8337421800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91230 + ... + 158106.

Almost surely, 2^8337421836 is an apocalyptic number.

It is an amenable number.

8337421836 is an abundant number, since it is smaller than the sum of its proper divisors (12744128836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8337421836 is a wasteful number, since it uses less digits than its factorization.

8337421836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70350 (or 70345 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 8337421836 is about 91309.4838228757. The cubic root of 8337421836 is about 2027.7321723034.

The spelling of 8337421836 in words is "eight billion, three hundred thirty-seven million, four hundred twenty-one thousand, eight hundred thirty-six".