628267611 has 8 divisors (see below), whose sum is σ = 838025280. Its totient is φ = 418677512.

The previous prime is 628267579. The next prime is 628267613. The reversal of 628267611 is 116762826.

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 628267611 - 2⁵ = 628267579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628267611.

It is not an unprimeable number, because it can be changed into a prime (628267613) 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, 32865 + ... + 48338.

It is an arithmetic number, because the mean of its divisors is an integer number (104753160).

Almost surely, 2^628267611 is an apocalyptic number.

628267611 is a deficient number, since it is larger than the sum of its proper divisors (209757669).

628267611 is a wasteful number, since it uses less digits than its factorization.

628267611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83785.

The product of its digits is 48384, while the sum is 39.

The square root of 628267611 is about 25065.2670243108. The cubic root of 628267611 is about 856.4753938328.

The spelling of 628267611 in words is "six hundred twenty-eight million, two hundred sixty-seven thousand, six hundred eleven".