628528001 has 8 divisors (see below), whose sum is σ = 631604640. Its totient is φ = 625457952.

The previous prime is 628527989. The next prime is 628528009. The reversal of 628528001 is 100825826.

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

It is a cyclic number.

It is not a de Polignac number, because 628528001 - 2¹⁴ = 628511617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628528009) 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, 363926 + ... + 365648.

It is an arithmetic number, because the mean of its divisors is an integer number (78950580).

Almost surely, 2^628528001 is an apocalyptic number.

It is an amenable number.

628528001 is a deficient number, since it is larger than the sum of its proper divisors (3076639).

628528001 is a wasteful number, since it uses less digits than its factorization.

628528001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 628528001 is about 25070.4607257226. The cubic root of 628528001 is about 856.5937016051.

The spelling of 628528001 in words is "six hundred twenty-eight million, five hundred twenty-eight thousand, one".