628882301 has 4 divisors (see below), whose sum is σ = 638268672. Its totient is φ = 619495932.

The previous prime is 628882249. The next prime is 628882321. The reversal of 628882301 is 103288826.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628882301 - 2⁶ = 628882237 is a prime.

It is a super-2 number, since 2×628882301² = 790985897022109202, 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 (628882321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4693085 + ... + 4693218.

It is an arithmetic number, because the mean of its divisors is an integer number (159567168).

Almost surely, 2^628882301 is an apocalyptic number.

It is an amenable number.

628882301 is a deficient number, since it is larger than the sum of its proper divisors (9386371).

628882301 is an equidigital number, since it uses as much as digits as its factorization.

628882301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386370.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 628882301 is about 25077.5258149603. The cubic root of 628882301 is about 856.7546247674.

The spelling of 628882301 in words is "six hundred twenty-eight million, eight hundred eighty-two thousand, three hundred one".