620326715 has 4 divisors (see below), whose sum is σ = 744392064. Its totient is φ = 496261368.

The previous prime is 620326699. The next prime is 620326717. The reversal of 620326715 is 517623026.

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 620326715 - 2⁴ = 620326699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620326717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62032667 + ... + 62032676.

It is an arithmetic number, because the mean of its divisors is an integer number (186098016).

Almost surely, 2^620326715 is an apocalyptic number.

620326715 is a deficient number, since it is larger than the sum of its proper divisors (124065349).

620326715 is a wasteful number, since it uses less digits than its factorization.

620326715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124065348.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 620326715 is about 24906.3589269889. The cubic root of 620326715 is about 852.8516518656.

The spelling of 620326715 in words is "six hundred twenty million, three hundred twenty-six thousand, seven hundred fifteen".