8100621 has 8 divisors (see below), whose sum is σ = 12000960. Its totient is φ = 5400396.

The previous prime is 8100607. The next prime is 8100629. The reversal of 8100621 is 1260018.

It is not a de Polignac number, because 8100621 - 2⁶ = 8100557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8100594 and 8100603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8100629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149985 + ... + 150038.

It is an arithmetic number, because the mean of its divisors is an integer number (1500120).

Almost surely, 2^8100621 is an apocalyptic number.

It is an amenable number.

8100621 is a deficient number, since it is larger than the sum of its proper divisors (3900339).

8100621 is a wasteful number, since it uses less digits than its factorization.

8100621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300032 (or 300026 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 8100621 is about 2846.1589906398. The cubic root of 8100621 is about 200.8350172128.

Adding to 8100621 its reverse (1260018), we get a palindrome (9360639).

The spelling of 8100621 in words is "eight million, one hundred thousand, six hundred twenty-one".