1029473647 has 2 divisors, whose sum is σ = 1029473648. Its totient is φ = 1029473646.

The previous prime is 1029473617. The next prime is 1029473663. The reversal of 1029473647 is 7463749201.

It is a strong prime.

It is an emirp because it is prime and its reverse (7463749201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1029473647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1029473617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514736823 + 514736824.

It is an arithmetic number, because the mean of its divisors is an integer number (514736824).

Almost surely, 2^1029473647 is an apocalyptic number.

1029473647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029473647 is an equidigital number, since it uses as much as digits as its factorization.

1029473647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 1029473647 is about 32085.4117473970. The cubic root of 1029473647 is about 1009.7295773096.

It can be divided in two parts, 102 and 9473647, that added together give a palindrome (9473749).

The spelling of 1029473647 in words is "one billion, twenty-nine million, four hundred seventy-three thousand, six hundred forty-seven".