621103679 has 8 divisors (see below), whose sum is σ = 721864320. Its totient is φ = 523350936.

The previous prime is 621103663. The next prime is 621103723. The reversal of 621103679 is 976301126.

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 621103679 - 2⁴ = 621103663 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 (621102679) 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, 751529 + ... + 752354.

It is an arithmetic number, because the mean of its divisors is an integer number (90233040).

Almost surely, 2^621103679 is an apocalyptic number.

621103679 is a deficient number, since it is larger than the sum of its proper divisors (100760641).

621103679 is a wasteful number, since it uses less digits than its factorization.

621103679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503949.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 621103679 is about 24921.9517494116. The cubic root of 621103679 is about 853.2075710694.

The spelling of 621103679 in words is "six hundred twenty-one million, one hundred three thousand, six hundred seventy-nine".