628857453 has 8 divisors (see below), whose sum is σ = 958259008. Its totient is φ = 359347104.

The previous prime is 628857409. The next prime is 628857457. The reversal of 628857453 is 354758826.

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

It is not a de Polignac number, because 628857453 - 2⁶ = 628857389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628857457) 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, 14972776 + ... + 14972817.

It is an arithmetic number, because the mean of its divisors is an integer number (119782376).

Almost surely, 2^628857453 is an apocalyptic number.

It is an amenable number.

628857453 is a deficient number, since it is larger than the sum of its proper divisors (329401555).

628857453 is a wasteful number, since it uses less digits than its factorization.

628857453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29945603.

The product of its digits is 1612800, while the sum is 48.

The square root of 628857453 is about 25077.0303863914. The cubic root of 628857453 is about 856.7433407697.

The spelling of 628857453 in words is "six hundred twenty-eight million, eight hundred fifty-seven thousand, four hundred fifty-three".