628001041 has 4 divisors (see below), whose sum is σ = 628054452. Its totient is φ = 627947632.

The previous prime is 628000979. The next prime is 628001071. The reversal of 628001041 is 140100826.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 228161025 + 399840016 = 15105^2 + 19996^2 .

It is a cyclic number.

It is not a de Polignac number, because 628001041 - 2⁷ = 628000913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628001071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490 + ... + 35443.

It is an arithmetic number, because the mean of its divisors is an integer number (157013613).

Almost surely, 2^628001041 is an apocalyptic number.

It is an amenable number.

628001041 is a deficient number, since it is larger than the sum of its proper divisors (53411).

628001041 is a wasteful number, since it uses less digits than its factorization.

628001041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53410.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 628001041 is about 25059.9489424859. The cubic root of 628001041 is about 856.3542443207.

Adding to 628001041 its reverse (140100826), we get a palindrome (768101867).

The spelling of 628001041 in words is "six hundred twenty-eight million, one thousand, forty-one".