8290645 has 16 divisors (see below), whose sum is σ = 11492928. Its totient is φ = 5674240.

The previous prime is 8290643. The next prime is 8290657. The reversal of 8290645 is 5460928.

It is a happy number.

It is not a de Polignac number, because 8290645 - 2¹ = 8290643 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8290645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8290643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3499 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (718308).

Almost surely, 2^8290645 is an apocalyptic number.

8290645 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8290645 is a deficient number, since it is larger than the sum of its proper divisors (3202283).

8290645 is a wasteful number, since it uses less digits than its factorization.

8290645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8900.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 8290645 is about 2879.3480164787. The cubic root of 8290645 is about 202.3932882863.

The spelling of 8290645 in words is "eight million, two hundred ninety thousand, six hundred forty-five".