628219411 has 8 divisors (see below), whose sum is σ = 683151840. Its totient is φ = 575284608.

The previous prime is 628219381. The next prime is 628219451. The reversal of 628219411 is 114912826.

It is a happy number.

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 628219411 - 2⁷ = 628219283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628219451) 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, 498751 + ... + 500008.

It is an arithmetic number, because the mean of its divisors is an integer number (85393980).

Almost surely, 2^628219411 is an apocalyptic number.

628219411 is a deficient number, since it is larger than the sum of its proper divisors (54932429).

628219411 is a wasteful number, since it uses less digits than its factorization.

628219411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998813.

The product of its digits is 6912, while the sum is 34.

The square root of 628219411 is about 25064.3055160122. The cubic root of 628219411 is about 856.4534906560.

The spelling of 628219411 in words is "six hundred twenty-eight million, two hundred nineteen thousand, four hundred eleven".