628468953 has 20 divisors (see below), whose sum is σ = 977571408. Its totient is φ = 359121000.

The previous prime is 628468931. The next prime is 628468979. The reversal of 628468953 is 359864826.

It is not a de Polignac number, because 628468953 - 2⁸ = 628468697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 628468896 and 628468905.

It is not an unprimeable number, because it can be changed into a prime (628468993) 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 19 ways as a sum of consecutive naturals, for example, 36423 + ... + 50828.

Almost surely, 2^628468953 is an apocalyptic number.

It is an amenable number.

628468953 is a deficient number, since it is larger than the sum of its proper divisors (349102455).

628468953 is an frugal number, since it uses more digits than its factorization.

628468953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87282 (or 87261 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 628468953 is about 25069.2830571598. The cubic root of 628468953 is about 856.5668761076.

The spelling of 628468953 in words is "six hundred twenty-eight million, four hundred sixty-eight thousand, nine hundred fifty-three".