620695403 has 2 divisors, whose sum is σ = 620695404. Its totient is φ = 620695402.

The previous prime is 620695393. The next prime is 620695447. The reversal of 620695403 is 304596026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620695403 - 2¹² = 620691307 is a prime.

It is not a weakly prime, because it can be changed into another prime (620695463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310347701 + 310347702.

It is an arithmetic number, because the mean of its divisors is an integer number (310347702).

Almost surely, 2^620695403 is an apocalyptic number.

620695403 is a deficient number, since it is larger than the sum of its proper divisors (1).

620695403 is an equidigital number, since it uses as much as digits as its factorization.

620695403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 620695403 is about 24913.7593108708. The cubic root of 620695403 is about 853.0205810704.

The spelling of 620695403 in words is "six hundred twenty million, six hundred ninety-five thousand, four hundred three".