620548099 has 4 divisors (see below), whose sum is σ = 621695680. Its totient is φ = 619400520.

The previous prime is 620548087. The next prime is 620548109. The reversal of 620548099 is 990845026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620548099 - 2⁵ = 620548067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620548069) 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 3 ways as a sum of consecutive naturals, for example, 572979 + ... + 574060.

It is an arithmetic number, because the mean of its divisors is an integer number (155423920).

Almost surely, 2^620548099 is an apocalyptic number.

620548099 is a deficient number, since it is larger than the sum of its proper divisors (1147581).

620548099 is a wasteful number, since it uses less digits than its factorization.

620548099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147580.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 620548099 is about 24910.8028573950. The cubic root of 620548099 is about 852.9530958570.

The spelling of 620548099 in words is "six hundred twenty million, five hundred forty-eight thousand, ninety-nine".