8390736 has 40 divisors (see below), whose sum is σ = 24085760. Its totient is φ = 2796768.

The previous prime is 8390731. The next prime is 8390737. The reversal of 8390736 is 6370938.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8390736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390731) 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, 9280 + ... + 10143.

It is an arithmetic number, because the mean of its divisors is an integer number (602144).

Almost surely, 2^8390736 is an apocalyptic number.

It is an amenable number.

8390736 is an abundant number, since it is smaller than the sum of its proper divisors (15695024).

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

8390736 is a wasteful number, since it uses less digits than its factorization.

8390736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19440 (or 19428 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 8390736 is about 2896.6767165150. The cubic root of 8390736 is about 203.2045145421.

The spelling of 8390736 in words is "eight million, three hundred ninety thousand, seven hundred thirty-six".