999440627 has 2 divisors, whose sum is σ = 999440628. Its totient is φ = 999440626.

The previous prime is 999440623. The next prime is 999440639. The reversal of 999440627 is 726044999.

999440627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999440627 - 2² = 999440623 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999440623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499720313 + 499720314.

It is an arithmetic number, because the mean of its divisors is an integer number (499720314).

Almost surely, 2^999440627 is an apocalyptic number.

999440627 is a deficient number, since it is larger than the sum of its proper divisors (1).

999440627 is an equidigital number, since it uses as much as digits as its factorization.

999440627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 999440627 is about 31613.9309007912. The cubic root of 999440627 is about 999.8135075561.

It can be divided in two parts, 9994406 and 27, that multiplied together give a palindrome (269848962).

The spelling of 999440627 in words is "nine hundred ninety-nine million, four hundred forty thousand, six hundred twenty-seven".