628305101 has 8 divisors (see below), whose sum is σ = 640717440. Its totient is φ = 615951648.

The previous prime is 628305077. The next prime is 628305107. The reversal of 628305101 is 101503826.

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 628305101 - 2¹⁸ = 628042957 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 (628305107) 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, 7145 + ... + 36161.

It is an arithmetic number, because the mean of its divisors is an integer number (80089680).

Almost surely, 2^628305101 is an apocalyptic number.

It is an amenable number.

628305101 is a deficient number, since it is larger than the sum of its proper divisors (12412339).

628305101 is a wasteful number, since it uses less digits than its factorization.

628305101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29443.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 628305101 is about 25066.0148607632. The cubic root of 628305101 is about 856.4924293674.

Adding to 628305101 its reverse (101503826), we get a palindrome (729808927).

The spelling of 628305101 in words is "six hundred twenty-eight million, three hundred five thousand, one hundred one".