621210797 has 16 divisors (see below), whose sum is σ = 655049472. Its totient is φ = 588409920.

The previous prime is 621210791. The next prime is 621210839. The reversal of 621210797 is 797012126.

621210797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 621210797 - 2⁴ = 621210781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621210791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366083 + ... + 367775.

It is an arithmetic number, because the mean of its divisors is an integer number (40940592).

Almost surely, 2^621210797 is an apocalyptic number.

It is an amenable number.

621210797 is a deficient number, since it is larger than the sum of its proper divisors (33838675).

621210797 is a wasteful number, since it uses less digits than its factorization.

621210797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 621210797 is about 24924.1007260041. The cubic root of 621210797 is about 853.2566174353.

The spelling of 621210797 in words is "six hundred twenty-one million, two hundred ten thousand, seven hundred ninety-seven".