620965318 has 8 divisors (see below), whose sum is σ = 931922712. Its totient is φ = 310324416.

The previous prime is 620965297. The next prime is 620965343. The reversal of 620965318 is 813569026.

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

It is a super-2 number, since 2×620965318² = 771195852317682248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74155 + ... + 82102.

It is an arithmetic number, because the mean of its divisors is an integer number (116490339).

Almost surely, 2^620965318 is an apocalyptic number.

620965318 is a deficient number, since it is larger than the sum of its proper divisors (310957394).

620965318 is a wasteful number, since it uses less digits than its factorization.

620965318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158246.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 620965318 is about 24919.1757086786. The cubic root of 620965318 is about 853.1442110520.

The spelling of 620965318 in words is "six hundred twenty million, nine hundred sixty-five thousand, three hundred eighteen".