626670001 has 4 divisors (see below), whose sum is σ = 627428592. Its totient is φ = 625911412.

The previous prime is 626669993. The next prime is 626670013. The reversal of 626670001 is 100076626.

626670001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 626670001 - 2³ = 626669993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626670061) 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, 378055 + ... + 379708.

It is an arithmetic number, because the mean of its divisors is an integer number (156857148).

Almost surely, 2^626670001 is an apocalyptic number.

It is an amenable number.

626670001 is a deficient number, since it is larger than the sum of its proper divisors (758591).

626670001 is an equidigital number, since it uses as much as digits as its factorization.

626670001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758590.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 626670001 is about 25033.3777385314. The cubic root of 626670001 is about 855.7488058359.

It can be divided in two parts, 6266 and 70001, that added together give a palindrome (76267).

The spelling of 626670001 in words is "six hundred twenty-six million, six hundred seventy thousand, one".