621652011 has 8 divisors (see below), whose sum is σ = 829944720. Its totient is φ = 413896992.

The previous prime is 621652007. The next prime is 621652061. The reversal of 621652011 is 110256126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 621652011 - 2² = 621652007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621652001) 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 7 ways as a sum of consecutive naturals, for example, 131716 + ... + 136353.

It is an arithmetic number, because the mean of its divisors is an integer number (103743090).

Almost surely, 2^621652011 is an apocalyptic number.

621652011 is a deficient number, since it is larger than the sum of its proper divisors (208292709).

621652011 is a wasteful number, since it uses less digits than its factorization.

621652011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268845.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 621652011 is about 24932.9503067728. The cubic root of 621652011 is about 853.4585776896.

The spelling of 621652011 in words is "six hundred twenty-one million, six hundred fifty-two thousand, eleven".