620617236 has 12 divisors (see below), whose sum is σ = 1448106912. Its totient is φ = 206872408.

The previous prime is 620617223. The next prime is 620617253. The reversal of 620617236 is 632716026.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 620617197 and 620617206.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25859040 + ... + 25859063.

It is an arithmetic number, because the mean of its divisors is an integer number (120675576).

Almost surely, 2^620617236 is an apocalyptic number.

It is an amenable number.

620617236 is an abundant number, since it is smaller than the sum of its proper divisors (827489676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620617236 is a wasteful number, since it uses less digits than its factorization.

620617236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51718110 (or 51718108 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 620617236 is about 24912.1905098689. The cubic root of 620617236 is about 852.9847713110.

The spelling of 620617236 in words is "six hundred twenty million, six hundred seventeen thousand, two hundred thirty-six".