8390628 has 120 divisors (see below), whose sum is σ = 24393600. Its totient is φ = 2503872.

The previous prime is 8390623. The next prime is 8390663. The reversal of 8390628 is 8260938.

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

It is a junction number, because it is equal to n+sod(n) for n = 8390592 and 8390601.

It is not an unprimeable number, because it can be changed into a prime (8390623) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 178501 + ... + 178547.

It is an arithmetic number, because the mean of its divisors is an integer number (203280).

Almost surely, 2^8390628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8390628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12196800).

8390628 is an abundant number, since it is smaller than the sum of its proper divisors (16002972).

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

8390628 is a wasteful number, since it uses less digits than its factorization.

8390628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8390628 is about 2896.6580744023. The cubic root of 8390628 is about 203.2036427003.

The spelling of 8390628 in words is "eight million, three hundred ninety thousand, six hundred twenty-eight".