620023869 has 16 divisors (see below), whose sum is σ = 923870400. Its totient is φ = 410956848.

The previous prime is 620023843. The next prime is 620023879. The reversal of 620023869 is 968320026.

620023869 is a `hidden beast` number, since 620 + 0 + 23 + 8 + 6 + 9 = 666.

620023869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 620023869 - 2⁹ = 620023357 is a prime.

It is a super-2 number, since 2×620023869² = 768859196259458322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620023879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61699 + ... + 71040.

It is an arithmetic number, because the mean of its divisors is an integer number (57741900).

Almost surely, 2^620023869 is an apocalyptic number.

It is an amenable number.

620023869 is a deficient number, since it is larger than the sum of its proper divisors (303846531).

620023869 is a wasteful number, since it uses less digits than its factorization.

620023869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132921 (or 132915 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 620023869 is about 24900.2784924185. The cubic root of 620023869 is about 852.7128407370.

The spelling of 620023869 in words is "six hundred twenty million, twenty-three thousand, eight hundred sixty-nine".