620522867 has 4 divisors (see below), whose sum is σ = 624687600. Its totient is φ = 616358136.

The previous prime is 620522807. The next prime is 620522879. The reversal of 620522867 is 768225026.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768225026 = 2 ⋅384112513.

It is a cyclic number.

It is not a de Polignac number, because 620522867 - 2⁶ = 620522803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620522867.

It is not an unprimeable number, because it can be changed into a prime (620522807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082143 + ... + 2082440.

It is an arithmetic number, because the mean of its divisors is an integer number (156171900).

Almost surely, 2^620522867 is an apocalyptic number.

620522867 is a deficient number, since it is larger than the sum of its proper divisors (4164733).

620522867 is a wasteful number, since it uses less digits than its factorization.

620522867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164732.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 620522867 is about 24910.2964053020. The cubic root of 620522867 is about 852.9415351071.

The spelling of 620522867 in words is "six hundred twenty million, five hundred twenty-two thousand, eight hundred sixty-seven".