620637652 has 12 divisors (see below), whose sum is σ = 1094407776. Its totient is φ = 307949720.

The previous prime is 620637637. The next prime is 620637653. The reversal of 620637652 is 256736026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620637653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591688 + ... + 592735.

It is an arithmetic number, because the mean of its divisors is an integer number (91200648).

Almost surely, 2^620637652 is an apocalyptic number.

It is an amenable number.

620637652 is a deficient number, since it is larger than the sum of its proper divisors (473770124).

620637652 is a wasteful number, since it uses less digits than its factorization.

620637652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184558 (or 1184556 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 620637652 is about 24912.6002657290. The cubic root of 620637652 is about 852.9941245512.

The spelling of 620637652 in words is "six hundred twenty million, six hundred thirty-seven thousand, six hundred fifty-two".