8620001 has 8 divisors (see below), whose sum is σ = 9534504. Its totient is φ = 7741440.

The previous prime is 8619997. The next prime is 8620043. The reversal of 8620001 is 1000268.

It can be written as a sum of positive squares in 4 ways, for example, as 70225 + 8549776 = 265^2 + 2924^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8620001 - 2² = 8619997 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8622001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8480 + ... + 9441.

It is an arithmetic number, because the mean of its divisors is an integer number (1191813).

Almost surely, 2^8620001 is an apocalyptic number.

It is an amenable number.

8620001 is a deficient number, since it is larger than the sum of its proper divisors (914503).

8620001 is a wasteful number, since it uses less digits than its factorization.

8620001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17971.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 8620001 is about 2935.9838214813. The cubic root of 8620001 is about 205.0386680974.

Adding to 8620001 its reverse (1000268), we get a palindrome (9620269).

The spelling of 8620001 in words is "eight million, six hundred twenty thousand, one".