8621073 has 10 divisors (see below), whose sum is σ = 12878514. Its totient is φ = 5747328.

The previous prime is 8621051. The next prime is 8621077. The reversal of 8621073 is 3701268.

It can be written as a sum of positive squares in only one way, i.e., 7935489 + 685584 = 2817^2 + 828^2 .

It is not a de Polignac number, because 8621073 - 2⁶ = 8621009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8621077) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 53136 + ... + 53297.

Almost surely, 2^8621073 is an apocalyptic number.

It is an amenable number.

8621073 is a deficient number, since it is larger than the sum of its proper divisors (4257441).

8621073 is a wasteful number, since it uses less digits than its factorization.

8621073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106445 (or 106436 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 8621073 is about 2936.1663781196. The cubic root of 8621073 is about 205.0471674136.

The spelling of 8621073 in words is "eight million, six hundred twenty-one thousand, seventy-three".