620604671 has 2 divisors, whose sum is σ = 620604672. Its totient is φ = 620604670.

The previous prime is 620604661. The next prime is 620604731. The reversal of 620604671 is 176406026.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620604671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620604641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310302335 + 310302336.

It is an arithmetic number, because the mean of its divisors is an integer number (310302336).

Almost surely, 2^620604671 is an apocalyptic number.

620604671 is a deficient number, since it is larger than the sum of its proper divisors (1).

620604671 is an equidigital number, since it uses as much as digits as its factorization.

620604671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 620604671 is about 24911.9383228202. The cubic root of 620604671 is about 852.9790147699.

The spelling of 620604671 in words is "six hundred twenty million, six hundred four thousand, six hundred seventy-one".