1004427629 has 2 divisors, whose sum is σ = 1004427630. Its totient is φ = 1004427628.

The previous prime is 1004427617. The next prime is 1004427631. The reversal of 1004427629 is 9267244001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810939529 + 193488100 = 28477^2 + 13910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004427629 - 2²⁴ = 987650413 is a prime.

Together with 1004427631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1004427649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502213814 + 502213815.

It is an arithmetic number, because the mean of its divisors is an integer number (502213815).

Almost surely, 2^1004427629 is an apocalyptic number.

It is an amenable number.

1004427629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004427629 is an equidigital number, since it uses as much as digits as its factorization.

1004427629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1004427629 is about 31692.7062429197. The cubic root of 1004427629 is about 1001.4737034646.

It can be divided in two parts, 10044 and 27629, that added together give a palindrome (37673).

The spelling of 1004427629 in words is "one billion, four million, four hundred twenty-seven thousand, six hundred twenty-nine".