620226785 has 8 divisors (see below), whose sum is σ = 783444480. Its totient is φ = 470066544.

The previous prime is 620226779. The next prime is 620226863. The reversal of 620226785 is 587622026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620226785 - 2²² = 616032481 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 3264257 + ... + 3264446.

It is an arithmetic number, because the mean of its divisors is an integer number (97930560).

Almost surely, 2^620226785 is an apocalyptic number.

It is an amenable number.

620226785 is a deficient number, since it is larger than the sum of its proper divisors (163217695).

620226785 is a wasteful number, since it uses less digits than its factorization.

620226785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528727.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 620226785 is about 24904.3527320025. The cubic root of 620226785 is about 852.8058533962.

The spelling of 620226785 in words is "six hundred twenty million, two hundred twenty-six thousand, seven hundred eighty-five".