620827 has 2 divisors, whose sum is σ = 620828. Its totient is φ = 620826.

The previous prime is 620821. The next prime is 620831. The reversal of 620827 is 728026.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620827 is a prime.

620827 is a lucky number.

It is equal to p₅₀₆₇₇ and since 620827 and 50677 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (620821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310413 + 310414.

It is an arithmetic number, because the mean of its divisors is an integer number (310414).

2⁶²⁰⁸²⁷ is an apocalyptic number.

620827 is a deficient number, since it is larger than the sum of its proper divisors (1).

620827 is an equidigital number, since it uses as much as digits as its factorization.

620827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 620827 is about 787.9257579239. The cubic root of 620827 is about 85.3080861318.

The spelling of 620827 in words is "six hundred twenty thousand, eight hundred twenty-seven".