8391036 has 12 divisors (see below), whose sum is σ = 19579112. Its totient is φ = 2797008.

The previous prime is 8391023. The next prime is 8391037. The reversal of 8391036 is 6301938.

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

It is a junction number, because it is equal to n+sod(n) for n = 8390994 and 8391012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8391037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349615 + ... + 349638.

Almost surely, 2^8391036 is an apocalyptic number.

It is an amenable number.

8391036 is an abundant number, since it is smaller than the sum of its proper divisors (11188076).

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

8391036 is a wasteful number, since it uses less digits than its factorization.

8391036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699260 (or 699258 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 8391036 is about 2896.7284995318. The cubic root of 8391036 is about 203.2069362854.

It can be divided in two parts, 83 and 91036, that added together give a palindrome (91119).

The spelling of 8391036 in words is "eight million, three hundred ninety-one thousand, thirty-six".