621106027 has 2 divisors, whose sum is σ = 621106028. Its totient is φ = 621106026.

The previous prime is 621106001. The next prime is 621106051. The reversal of 621106027 is 720601126.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 621106027 - 2¹⁵ = 621073259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621105992 and 621106010.

It is not a weakly prime, because it can be changed into another prime (621106127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310553013 + 310553014.

It is an arithmetic number, because the mean of its divisors is an integer number (310553014).

Almost surely, 2^621106027 is an apocalyptic number.

621106027 is a deficient number, since it is larger than the sum of its proper divisors (1).

621106027 is an equidigital number, since it uses as much as digits as its factorization.

621106027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 621106027 is about 24921.9988564320. The cubic root of 621106027 is about 853.2086462140.

The spelling of 621106027 in words is "six hundred twenty-one million, one hundred six thousand, twenty-seven".