620370893 has 2 divisors, whose sum is σ = 620370894. Its totient is φ = 620370892.

The previous prime is 620370869. The next prime is 620370911. The reversal of 620370893 is 398073026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 572788489 + 47582404 = 23933^2 + 6898^2 .

It is a cyclic number.

It is not a de Polignac number, because 620370893 - 2⁸ = 620370637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620370833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310185446 + 310185447.

It is an arithmetic number, because the mean of its divisors is an integer number (310185447).

Almost surely, 2^620370893 is an apocalyptic number.

It is an amenable number.

620370893 is a deficient number, since it is larger than the sum of its proper divisors (1).

620370893 is an equidigital number, since it uses as much as digits as its factorization.

620370893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 620370893 is about 24907.2457931422. The cubic root of 620370893 is about 852.8718973185.

The spelling of 620370893 in words is "six hundred twenty million, three hundred seventy thousand, eight hundred ninety-three".