628671029 has 24 divisors (see below), whose sum is σ = 765313920. Its totient is φ = 513943584.

The previous prime is 628671011. The next prime is 628671061. The reversal of 628671029 is 920176826.

It is not a de Polignac number, because 628671029 - 2²⁴ = 611893813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628671229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 566327 + ... + 567435.

It is an arithmetic number, because the mean of its divisors is an integer number (31888080).

Almost surely, 2^628671029 is an apocalyptic number.

It is an amenable number.

628671029 is a deficient number, since it is larger than the sum of its proper divisors (136642891).

628671029 is a wasteful number, since it uses less digits than its factorization.

628671029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 628671029 is about 25073.3130838348. The cubic root of 628671029 is about 856.6586722411.

The spelling of 628671029 in words is "six hundred twenty-eight million, six hundred seventy-one thousand, twenty-nine".