8025621 has 8 divisors (see below), whose sum is σ = 11046144. Its totient is φ = 5177760.

The previous prime is 8025613. The next prime is 8025623. The reversal of 8025621 is 1265208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8025621 - 2³ = 8025613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8025591 and 8025600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8025623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43056 + ... + 43241.

It is an arithmetic number, because the mean of its divisors is an integer number (1380768).

Almost surely, 2^8025621 is an apocalyptic number.

It is an amenable number.

8025621 is a deficient number, since it is larger than the sum of its proper divisors (3020523).

8025621 is a wasteful number, since it uses less digits than its factorization.

8025621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86331.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 8025621 is about 2832.9526999228. The cubic root of 8025621 is about 200.2132808090.

It can be divided in two parts, 8025 and 621, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 8025621 in words is "eight million, twenty-five thousand, six hundred twenty-one".