620280881 has 8 divisors (see below), whose sum is σ = 677730144. Its totient is φ = 563008320.

The previous prime is 620280863. The next prime is 620280907. The reversal of 620280881 is 188082026.

620280881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620280881 - 2¹⁴ = 620264497 is a prime.

It is a super-2 number, since 2×620280881² = 769496742668272322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620280851) 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, 36776 + ... + 50921.

It is an arithmetic number, because the mean of its divisors is an integer number (84716268).

Almost surely, 2^620280881 is an apocalyptic number.

It is an amenable number.

620280881 is a deficient number, since it is larger than the sum of its proper divisors (57449263).

620280881 is a wasteful number, since it uses less digits than its factorization.

620280881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88351.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 620280881 is about 24905.4387835268. The cubic root of 620280881 is about 852.8306465016.

The spelling of 620280881 in words is "six hundred twenty million, two hundred eighty thousand, eight hundred eighty-one".