626868849 has 4 divisors (see below), whose sum is σ = 835825136. Its totient is φ = 417912564.

The previous prime is 626868839. The next prime is 626868859. The reversal of 626868849 is 948868626.

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 an interprime number because it is at equal distance from previous prime (626868839) and next prime (626868859).

It is not a de Polignac number, because 626868849 - 2⁹ = 626868337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (626868839) 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, 104478139 + ... + 104478144.

It is an arithmetic number, because the mean of its divisors is an integer number (208956284).

Almost surely, 2^626868849 is an apocalyptic number.

It is an amenable number.

626868849 is a deficient number, since it is larger than the sum of its proper divisors (208956287).

626868849 is a wasteful number, since it uses less digits than its factorization.

626868849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208956286.

The product of its digits is 7962624, while the sum is 57.

The square root of 626868849 is about 25037.3490809231. The cubic root of 626868849 is about 855.8393085158.

The spelling of 626868849 in words is "six hundred twenty-six million, eight hundred sixty-eight thousand, eight hundred forty-nine".