620631241 has 8 divisors (see below), whose sum is σ = 647881344. Its totient is φ = 593403360.

The previous prime is 620631211. The next prime is 620631269. The reversal of 620631241 is 142136026.

620631241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620631241 - 2⁹ = 620630729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620631211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79221 + ... + 86701.

It is an arithmetic number, because the mean of its divisors is an integer number (80985168).

Almost surely, 2^620631241 is an apocalyptic number.

It is an amenable number.

620631241 is a deficient number, since it is larger than the sum of its proper divisors (27250103).

620631241 is a wasteful number, since it uses less digits than its factorization.

620631241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 620631241 is about 24912.4715955684. The cubic root of 620631241 is about 852.9911874836.

Adding to 620631241 its reverse (142136026), we get a palindrome (762767267).

The spelling of 620631241 in words is "six hundred twenty million, six hundred thirty-one thousand, two hundred forty-one".