620871803 has 8 divisors (see below), whose sum is σ = 638838672. Its totient is φ = 602967456.

The previous prime is 620871799. The next prime is 620871827. The reversal of 620871803 is 308178026.

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 620871803 - 2² = 620871799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620871863) 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, 4901 + ... + 35577.

It is an arithmetic number, because the mean of its divisors is an integer number (79854834).

Almost surely, 2^620871803 is an apocalyptic number.

620871803 is a deficient number, since it is larger than the sum of its proper divisors (17966869).

620871803 is a wasteful number, since it uses less digits than its factorization.

620871803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31261.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 620871803 is about 24917.2992717911. The cubic root of 620871803 is about 853.1013821511.

The spelling of 620871803 in words is "six hundred twenty million, eight hundred seventy-one thousand, eight hundred three".