620693135 has 4 divisors (see below), whose sum is σ = 744831768. Its totient is φ = 496554504.

The previous prime is 620693057. The next prime is 620693149. The reversal of 620693135 is 531396026.

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 620693135 - 2⁸ = 620692879 is a prime.

It is a super-2 number, since 2×620693135² = 770519935672256450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620693095 and 620693104.

It is a congruent number.

It is an unprimeable number.

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, 62069309 + ... + 62069318.

It is an arithmetic number, because the mean of its divisors is an integer number (186207942).

Almost surely, 2^620693135 is an apocalyptic number.

620693135 is a deficient number, since it is larger than the sum of its proper divisors (124138633).

620693135 is a wasteful number, since it uses less digits than its factorization.

620693135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124138632.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 620693135 is about 24913.7137938124. The cubic root of 620693135 is about 853.0195420996.

The spelling of 620693135 in words is "six hundred twenty million, six hundred ninety-three thousand, one hundred thirty-five".