628133007 has 4 divisors (see below), whose sum is σ = 837510680. Its totient is φ = 418755336.

The previous prime is 628132991. The next prime is 628133021. The reversal of 628133007 is 700331826.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 628133007 - 2⁴ = 628132991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628133047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104688832 + ... + 104688837.

It is an arithmetic number, because the mean of its divisors is an integer number (209377670).

Almost surely, 2^628133007 is an apocalyptic number.

628133007 is a deficient number, since it is larger than the sum of its proper divisors (209377673).

628133007 is a wasteful number, since it uses less digits than its factorization.

628133007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209377672.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 628133007 is about 25062.5818103403. The cubic root of 628133007 is about 856.4142239077.

The spelling of 628133007 in words is "six hundred twenty-eight million, one hundred thirty-three thousand, seven".