620222786 has 16 divisors (see below), whose sum is σ = 956530680. Its totient is φ = 301397760.

The previous prime is 620222723. The next prime is 620222789. The reversal of 620222786 is 687222026.

It can be written as a sum of positive squares in 4 ways, for example, as 533379025 + 86843761 = 23095^2 + 9319^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (620222789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71450 + ... + 79658.

Almost surely, 2^620222786 is an apocalyptic number.

620222786 is a deficient number, since it is larger than the sum of its proper divisors (336307894).

620222786 is a wasteful number, since it uses less digits than its factorization.

620222786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 620222786 is about 24904.2724447031. The cubic root of 620222786 is about 852.8040205301.

The spelling of 620222786 in words is "six hundred twenty million, two hundred twenty-two thousand, seven hundred eighty-six".