620109271 has 2 divisors, whose sum is σ = 620109272. Its totient is φ = 620109270.

The previous prime is 620109239. The next prime is 620109277. The reversal of 620109271 is 172901026.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620109271 - 2⁵ = 620109239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620109277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310054635 + 310054636.

It is an arithmetic number, because the mean of its divisors is an integer number (310054636).

Almost surely, 2^620109271 is an apocalyptic number.

620109271 is a deficient number, since it is larger than the sum of its proper divisors (1).

620109271 is an equidigital number, since it uses as much as digits as its factorization.

620109271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 620109271 is about 24901.9933137892. The cubic root of 620109271 is about 852.7519897883.

The spelling of 620109271 in words is "six hundred twenty million, one hundred nine thousand, two hundred seventy-one".