628260611 has 16 divisors (see below), whose sum is σ = 719020800. Its totient is φ = 543664800.

The previous prime is 628260559. The next prime is 628260623. The reversal of 628260611 is 116062826.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628260611 is a prime.

It is a super-2 number, since 2×628260611² = 789422790668186642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628260641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8780 + ... + 36518.

It is an arithmetic number, because the mean of its divisors is an integer number (44938800).

Almost surely, 2^628260611 is an apocalyptic number.

628260611 is a deficient number, since it is larger than the sum of its proper divisors (90760189).

628260611 is a wasteful number, since it uses less digits than its factorization.

628260611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27850.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 628260611 is about 25065.1273884654. The cubic root of 628260611 is about 856.4722129430.

The spelling of 628260611 in words is "six hundred twenty-eight million, two hundred sixty thousand, six hundred eleven".