8637996 has 12 divisors (see below), whose sum is σ = 20155352. Its totient is φ = 2879328.

The previous prime is 8637991. The next prime is 8638033. The reversal of 8637996 is 6997368.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8637996² = 149229949792032, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8⁷ + 6³ + 3⁷ + 7⁵ + 9⁵ + 9⁷ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (8637991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359905 + ... + 359928.

Almost surely, 2^8637996 is an apocalyptic number.

It is an amenable number.

8637996 is an abundant number, since it is smaller than the sum of its proper divisors (11517356).

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

8637996 is a wasteful number, since it uses less digits than its factorization.

8637996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719840 (or 719838 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 8637996 is about 2939.0467842483. The cubic root of 8637996 is about 205.1812475976.

The spelling of 8637996 in words is "eight million, six hundred thirty-seven thousand, nine hundred ninety-six".