620074439 has 8 divisors (see below), whose sum is σ = 656823888. Its totient is φ = 583355520.

The previous prime is 620074409. The next prime is 620074459. The reversal of 620074439 is 934470026.

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 620074439 - 2²⁰ = 619025863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620074399 and 620074408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620074409) 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 7 ways as a sum of consecutive naturals, for example, 44369 + ... + 56645.

It is an arithmetic number, because the mean of its divisors is an integer number (82102986).

Almost surely, 2^620074439 is an apocalyptic number.

620074439 is a deficient number, since it is larger than the sum of its proper divisors (36749449).

620074439 is a wasteful number, since it uses less digits than its factorization.

620074439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15265.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 620074439 is about 24901.2939222041. The cubic root of 620074439 is about 852.7360229177.

The spelling of 620074439 in words is "six hundred twenty million, seventy-four thousand, four hundred thirty-nine".