620620070 has 32 divisors (see below), whose sum is σ = 1277640000. Its totient is φ = 212628096.

The previous prime is 620620057. The next prime is 620620079. The reversal of 620620070 is 70026026.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620620079) 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 15 ways as a sum of consecutive naturals, for example, 134156 + ... + 138704.

It is an arithmetic number, because the mean of its divisors is an integer number (39926250).

Almost surely, 2^620620070 is an apocalyptic number.

620620070 is an abundant number, since it is smaller than the sum of its proper divisors (657019930).

620620070 is a wasteful number, since it uses less digits than its factorization.

620620070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6512.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 620620070 is about 24912.2473895873. The cubic root of 620620070 is about 852.9860696718.

Adding to 620620070 its reverse (70026026), we get a palindrome (690646096).

The spelling of 620620070 in words is "six hundred twenty million, six hundred twenty thousand, seventy".