620800671 has 16 divisors (see below), whose sum is σ = 836950400. Its totient is φ = 409274208.

The previous prime is 620800657. The next prime is 620800681. The reversal of 620800671 is 176008026.

It is a happy number.

It is not a de Polignac number, because 620800671 - 2¹⁹ = 620276383 is a prime.

It is a super-2 number, since 2×620800671² = 770786946228100482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620800601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200880 + ... + 203946.

It is an arithmetic number, because the mean of its divisors is an integer number (52309400).

Almost surely, 2^620800671 is an apocalyptic number.

620800671 is a deficient number, since it is larger than the sum of its proper divisors (216149729).

620800671 is a wasteful number, since it uses less digits than its factorization.

620800671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 620800671 is about 24915.8718691520. The cubic root of 620800671 is about 853.0688015524.

Adding to 620800671 its reverse (176008026), we get a palindrome (796808697).

The spelling of 620800671 in words is "six hundred twenty million, eight hundred thousand, six hundred seventy-one".