620036345 has 8 divisors (see below), whose sum is σ = 746584776. Its totient is φ = 494334976.

The previous prime is 620036299. The next prime is 620036357. The reversal of 620036345 is 543630026.

It can be written as a sum of positive squares in 4 ways, for example, as 371564176 + 248472169 = 19276^2 + 15763^2 .

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 620036345 - 2⁸ = 620036089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210152 + ... + 213081.

It is an arithmetic number, because the mean of its divisors is an integer number (93323097).

Almost surely, 2^620036345 is an apocalyptic number.

It is an amenable number.

620036345 is a deficient number, since it is larger than the sum of its proper divisors (126548431).

620036345 is a wasteful number, since it uses less digits than its factorization.

620036345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423531.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 620036345 is about 24900.5290104447. The cubic root of 620036345 is about 852.7185600727.

The spelling of 620036345 in words is "six hundred twenty million, thirty-six thousand, three hundred forty-five".