8075621001 has 16 divisors (see below), whose sum is σ = 12341182464. Its totient is φ = 4601337744.

The previous prime is 8075620937. The next prime is 8075621017. The reversal of 8075621001 is 1001265708.

It is not a de Polignac number, because 8075621001 - 2⁶ = 8075620937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8075621001.

It is not an unprimeable number, because it can be changed into a prime (8075625001) 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, 546825 + ... + 561398.

It is an arithmetic number, because the mean of its divisors is an integer number (771323904).

Almost surely, 2^8075621001 is an apocalyptic number.

It is an amenable number.

8075621001 is a deficient number, since it is larger than the sum of its proper divisors (4265561463).

8075621001 is a wasteful number, since it uses less digits than its factorization.

8075621001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108580.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 8075621001 is about 89864.4590536214. The cubic root of 8075621001 is about 2006.2819976768.

Adding to 8075621001 its reverse (1001265708), we get a palindrome (9076886709).

The spelling of 8075621001 in words is "eight billion, seventy-five million, six hundred twenty-one thousand, one".