620454011 has 4 divisors (see below), whose sum is σ = 622646712. Its totient is φ = 618261312.

The previous prime is 620454007. The next prime is 620454013. The reversal of 620454011 is 110454026.

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 620454011 - 2² = 620454007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620454013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095926 + ... + 1096491.

It is an arithmetic number, because the mean of its divisors is an integer number (155661678).

Almost surely, 2^620454011 is an apocalyptic number.

620454011 is a deficient number, since it is larger than the sum of its proper divisors (2192701).

620454011 is a wasteful number, since it uses less digits than its factorization.

620454011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192700.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 620454011 is about 24908.9142878609. The cubic root of 620454011 is about 852.9099852008.

The spelling of 620454011 in words is "six hundred twenty million, four hundred fifty-four thousand, eleven".