620460013 has 4 divisors (see below), whose sum is σ = 623056320. Its totient is φ = 617863708.

The previous prime is 620459951. The next prime is 620460037. The reversal of 620460013 is 310064026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310064026 = 2 ⋅155032013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620460013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620460053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297795 + ... + 1298272.

It is an arithmetic number, because the mean of its divisors is an integer number (155764080).

Almost surely, 2^620460013 is an apocalyptic number.

It is an amenable number.

620460013 is a deficient number, since it is larger than the sum of its proper divisors (2596307).

620460013 is a wasteful number, since it uses less digits than its factorization.

620460013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596306.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 620460013 is about 24909.0347665260. The cubic root of 620460013 is about 852.9127354177.

The spelling of 620460013 in words is "six hundred twenty million, four hundred sixty thousand, thirteen".