8012621 has 2 divisors, whose sum is σ = 8012622. Its totient is φ = 8012620.

The previous prime is 8012617. The next prime is 8012639. The reversal of 8012621 is 1262108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8008900 + 3721 = 2830^2 + 61^2 .

It is a cyclic number.

It is not a de Polignac number, because 8012621 - 2² = 8012617 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8012593 and 8012602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8012681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4006310 + 4006311.

It is an arithmetic number, because the mean of its divisors is an integer number (4006311).

Almost surely, 2^8012621 is an apocalyptic number.

It is an amenable number.

8012621 is a deficient number, since it is larger than the sum of its proper divisors (1).

8012621 is an equidigital number, since it uses as much as digits as its factorization.

8012621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 8012621 is about 2830.6573441517. The cubic root of 8012621 is about 200.1051197395.

Adding to 8012621 its reverse (1262108), we get a palindrome (9274729).

The spelling of 8012621 in words is "eight million, twelve thousand, six hundred twenty-one".