621093869 has 8 divisors (see below), whose sum is σ = 713218080. Its totient is φ = 534913200.

The previous prime is 621093859. The next prime is 621093883. The reversal of 621093869 is 968390126.

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 621093869 - 2⁴ = 621093853 is a prime.

It is a super-2 number, since 2×621093869² = 771515188218778322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621093859) 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, 1485662 + ... + 1486079.

It is an arithmetic number, because the mean of its divisors is an integer number (89152260).

Almost surely, 2^621093869 is an apocalyptic number.

It is an amenable number.

621093869 is a deficient number, since it is larger than the sum of its proper divisors (92124211).

621093869 is a wasteful number, since it uses less digits than its factorization.

621093869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971771.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 621093869 is about 24921.7549341935. The cubic root of 621093869 is about 853.2030790602.

The spelling of 621093869 in words is "six hundred twenty-one million, ninety-three thousand, eight hundred sixty-nine".