628033471 has 4 divisors (see below), whose sum is σ = 676343752. Its totient is φ = 579723192.

The previous prime is 628033457. The next prime is 628033477. The reversal of 628033471 is 174330826.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174330826 = 2 ⋅87165413.

It is a cyclic number.

It is not a de Polignac number, because 628033471 - 2²⁹ = 91162559 is a prime.

It is a super-3 number, since 3×628033471³ (a number of 27 digits) contains 333 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 (628033477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24155121 + ... + 24155146.

It is an arithmetic number, because the mean of its divisors is an integer number (169085938).

Almost surely, 2^628033471 is an apocalyptic number.

628033471 is a deficient number, since it is larger than the sum of its proper divisors (48310281).

628033471 is a wasteful number, since it uses less digits than its factorization.

628033471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48310280.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 628033471 is about 25060.5959825380. The cubic root of 628033471 is about 856.3689847899.

The spelling of 628033471 in words is "six hundred twenty-eight million, thirty-three thousand, four hundred seventy-one".