620874071 has 2 divisors, whose sum is σ = 620874072. Its totient is φ = 620874070.

The previous prime is 620874061. The next prime is 620874073. The reversal of 620874071 is 170478026.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620874071 - 2¹⁴ = 620857687 is a prime.

It is a super-2 number, since 2×620874071² = 770969224080226082, which contains 22 as substring.

Together with 620874073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620874073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310437035 + 310437036.

It is an arithmetic number, because the mean of its divisors is an integer number (310437036).

Almost surely, 2^620874071 is an apocalyptic number.

620874071 is a deficient number, since it is larger than the sum of its proper divisors (1).

620874071 is an equidigital number, since it uses as much as digits as its factorization.

620874071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 620874071 is about 24917.3447822997. The cubic root of 620874071 is about 853.1024209225.

The spelling of 620874071 in words is "six hundred twenty million, eight hundred seventy-four thousand, seventy-one".