628920014 has 8 divisors (see below), whose sum is σ = 945257040. Its totient is φ = 313834336.

The previous prime is 628920011. The next prime is 628920041. The reversal of 628920014 is 410029826.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628920011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311579 + ... + 313590.

It is an arithmetic number, because the mean of its divisors is an integer number (118157130).

Almost surely, 2^628920014 is an apocalyptic number.

628920014 is a deficient number, since it is larger than the sum of its proper divisors (316337026).

628920014 is a wasteful number, since it uses less digits than its factorization.

628920014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625674.

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

The square root of 628920014 is about 25078.2777319337. The cubic root of 628920014 is about 856.7717504634.

The spelling of 628920014 in words is "six hundred twenty-eight million, nine hundred twenty thousand, fourteen".