620753213 has 8 divisors (see below), whose sum is σ = 631094976. Its totient is φ = 610456000.

The previous prime is 620753209. The next prime is 620753239. The reversal of 620753213 is 312357026.

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 620753213 - 2² = 620753209 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 (620753513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17570 + ... + 39372.

It is an arithmetic number, because the mean of its divisors is an integer number (78886872).

Almost surely, 2^620753213 is an apocalyptic number.

It is an amenable number.

620753213 is a deficient number, since it is larger than the sum of its proper divisors (10341763).

620753213 is a wasteful number, since it uses less digits than its factorization.

620753213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22275.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 620753213 is about 24914.9194861232. The cubic root of 620753213 is about 853.0470629747.

The spelling of 620753213 in words is "six hundred twenty million, seven hundred fifty-three thousand, two hundred thirteen".