621633041 has 8 divisors (see below), whose sum is σ = 640187520. Its totient is φ = 603170928.

The previous prime is 621633037. The next prime is 621633043. The reversal of 621633041 is 140336126.

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

It is a cyclic number.

It is not a de Polignac number, because 621633041 - 2² = 621633037 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 621633041.

It is not an unprimeable number, because it can be changed into a prime (621633043) 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, 9311 + ... + 36468.

It is an arithmetic number, because the mean of its divisors is an integer number (80023440).

Almost surely, 2^621633041 is an apocalyptic number.

It is an amenable number.

621633041 is a deficient number, since it is larger than the sum of its proper divisors (18554479).

621633041 is a wasteful number, since it uses less digits than its factorization.

621633041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46183.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 621633041 is about 24932.5698835880. The cubic root of 621633041 is about 853.4498963729.

Adding to 621633041 its reverse (140336126), we get a palindrome (761969167).

The spelling of 621633041 in words is "six hundred twenty-one million, six hundred thirty-three thousand, forty-one".