628258283 has 4 divisors (see below), whose sum is σ = 630058800. Its totient is φ = 626457768.

The previous prime is 628258229. The next prime is 628258303. The reversal of 628258283 is 382852826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382852826 = 2 ⋅191426413.

It is a cyclic number.

It is not a de Polignac number, because 628258283 - 2⁶ = 628258219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628258223) 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, 899735 + ... + 900432.

It is an arithmetic number, because the mean of its divisors is an integer number (157514700).

Almost surely, 2^628258283 is an apocalyptic number.

628258283 is a deficient number, since it is larger than the sum of its proper divisors (1800517).

628258283 is a wasteful number, since it uses less digits than its factorization.

628258283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800516.

The product of its digits is 368640, while the sum is 44.

The square root of 628258283 is about 25065.0809494005. The cubic root of 628258283 is about 856.4711550647.

The spelling of 628258283 in words is "six hundred twenty-eight million, two hundred fifty-eight thousand, two hundred eighty-three".