8290815 has 64 divisors (see below), whose sum is σ = 15748992. Its totient is φ = 3686400.

The previous prime is 8290811. The next prime is 8290817. The reversal of 8290815 is 5180928.

It is a happy number.

It is not a de Polignac number, because 8290815 - 2² = 8290811 is a prime.

It is a super-2 number, since 2×8290815² = 137475226728450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8290811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135885 + ... + 135945.

It is an arithmetic number, because the mean of its divisors is an integer number (246078).

It is the magic constant of a 255 × 255 magic square.

Almost surely, 2^8290815 is an apocalyptic number.

8290815 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8290815 is a deficient number, since it is larger than the sum of its proper divisors (7458177).

8290815 is a wasteful number, since it uses less digits than its factorization.

8290815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 8290815 is about 2879.3775368993. The cubic root of 8290815 is about 202.3946716377.

The spelling of 8290815 in words is "eight million, two hundred ninety thousand, eight hundred fifteen".