620315207 has 4 divisors (see below), whose sum is σ = 620365680. Its totient is φ = 620264736.

The previous prime is 620315183. The next prime is 620315243. The reversal of 620315207 is 702513026.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 620315207 - 2¹⁰ = 620314183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620315257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6518 + ... + 35820.

It is an arithmetic number, because the mean of its divisors is an integer number (155091420).

Almost surely, 2^620315207 is an apocalyptic number.

620315207 is a deficient number, since it is larger than the sum of its proper divisors (50473).

620315207 is a wasteful number, since it uses less digits than its factorization.

620315207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50472.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 620315207 is about 24906.1279005790. The cubic root of 620315207 is about 852.8463779365.

The spelling of 620315207 in words is "six hundred twenty million, three hundred fifteen thousand, two hundred seven".