620698207 has 4 divisors (see below), whose sum is σ = 620840080. Its totient is φ = 620556336.

The previous prime is 620698189. The next prime is 620698219. The reversal of 620698207 is 702896026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620698207 - 2¹⁹ = 620173919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620698207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620698297) 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 in 3 ways as a sum of consecutive naturals, for example, 64158 + ... + 73195.

It is an arithmetic number, because the mean of its divisors is an integer number (155210020).

Almost surely, 2^620698207 is an apocalyptic number.

620698207 is a deficient number, since it is larger than the sum of its proper divisors (141873).

620698207 is a wasteful number, since it uses less digits than its factorization.

620698207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141872.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 620698207 is about 24913.8155849320. The cubic root of 620698207 is about 853.0218655791.

The spelling of 620698207 in words is "six hundred twenty million, six hundred ninety-eight thousand, two hundred seven".