620787683 has 4 divisors (see below), whose sum is σ = 635928888. Its totient is φ = 605646480.

The previous prime is 620787677. The next prime is 620787721. The reversal of 620787683 is 386787026.

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 620787683 - 2²⁴ = 604010467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620787613) 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, 7570541 + ... + 7570622.

It is an arithmetic number, because the mean of its divisors is an integer number (158982222).

Almost surely, 2^620787683 is an apocalyptic number.

620787683 is a deficient number, since it is larger than the sum of its proper divisors (15141205).

620787683 is a wasteful number, since it uses less digits than its factorization.

620787683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15141204.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 620787683 is about 24915.6112307124. The cubic root of 620787683 is about 853.0628523885.

The spelling of 620787683 in words is "six hundred twenty million, seven hundred eighty-seven thousand, six hundred eighty-three".