628769283 has 8 divisors (see below), whose sum is σ = 838887168. Its totient is φ = 418915464.

The previous prime is 628769269. The next prime is 628769287. The reversal of 628769283 is 382967826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 628769283 - 2⁹ = 628768771 is a prime.

It is a super-3 number, since 3×628769283³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (628769287) 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, 60391 + ... + 70032.

It is an arithmetic number, because the mean of its divisors is an integer number (104860896).

Almost surely, 2^628769283 is an apocalyptic number.

628769283 is a deficient number, since it is larger than the sum of its proper divisors (210117885).

628769283 is a wasteful number, since it uses less digits than its factorization.

628769283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132033.

The product of its digits is 1741824, while the sum is 51.

The square root of 628769283 is about 25075.2723414921. The cubic root of 628769283 is about 856.7032985256.

The spelling of 628769283 in words is "six hundred twenty-eight million, seven hundred sixty-nine thousand, two hundred eighty-three".