620627513 has 6 divisors (see below), whose sum is σ = 682177482. Its totient is φ = 564206720.

The previous prime is 620627507. The next prime is 620627519. The reversal of 620627513 is 315726026.

620627513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (620627507) and next prime (620627519).

It can be written as a sum of positive squares in only one way, i.e., 404331664 + 216295849 = 20108^2 + 14707^2 .

It is not a de Polignac number, because 620627513 - 2²⁰ = 619578937 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 620627513.

It is not an unprimeable number, because it can be changed into a prime (620627519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2564456 + ... + 2564697.

It is an arithmetic number, because the mean of its divisors is an integer number (113696247).

Almost surely, 2^620627513 is an apocalyptic number.

It is an amenable number.

620627513 is a deficient number, since it is larger than the sum of its proper divisors (61549969).

620627513 is a wasteful number, since it uses less digits than its factorization.

620627513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129175 (or 5129164 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 620627513 is about 24912.3967734941. The cubic root of 620627513 is about 852.9894795679.

The spelling of 620627513 in words is "six hundred twenty million, six hundred twenty-seven thousand, five hundred thirteen".