8440628607 has 6 divisors (see below), whose sum is σ = 12192019112. Its totient is φ = 5627085732.

The previous prime is 8440628597. The next prime is 8440628659. The reversal of 8440628607 is 7068260448.

It is not a de Polignac number, because 8440628607 - 2⁶ = 8440628543 is a prime.

It is a super-2 number, since 2×8440628607² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440628687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 468923803 + ... + 468923820.

Almost surely, 2^8440628607 is an apocalyptic number.

8440628607 is a deficient number, since it is larger than the sum of its proper divisors (3751390505).

8440628607 is a wasteful number, since it uses less digits than its factorization.

8440628607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937847629 (or 937847626 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 8440628607 is about 91872.8937554489. The cubic root of 8440628607 is about 2036.0648064173.

The spelling of 8440628607 in words is "eight billion, four hundred forty million, six hundred twenty-eight thousand, six hundred seven".