1047952639 has 2 divisors, whose sum is σ = 1047952640. Its totient is φ = 1047952638.

The previous prime is 1047952637. The next prime is 1047952649. The reversal of 1047952639 is 9362597401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1047952639 - 2¹ = 1047952637 is a prime.

Together with 1047952637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047952637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523976319 + 523976320.

It is an arithmetic number, because the mean of its divisors is an integer number (523976320).

Almost surely, 2^1047952639 is an apocalyptic number.

1047952639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047952639 is an equidigital number, since it uses as much as digits as its factorization.

1047952639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 1047952639 is about 32372.0966111248. The cubic root of 1047952639 is about 1015.7353141985.

The spelling of 1047952639 in words is "one billion, forty-seven million, nine hundred fifty-two thousand, six hundred thirty-nine".