1047728173 has 24 divisors (see below), whose sum is σ = 1163554560. Its totient is φ = 942120960.

The previous prime is 1047728167. The next prime is 1047728179. The reversal of 1047728173 is 3718277401.

1047728173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1047728167) and next prime (1047728179).

It is not a de Polignac number, because 1047728173 - 2⁹ = 1047727661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047728179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 742893 + ... + 744301.

It is an arithmetic number, because the mean of its divisors is an integer number (48481440).

Almost surely, 2^1047728173 is an apocalyptic number.

It is an amenable number.

1047728173 is a deficient number, since it is larger than the sum of its proper divisors (115826387).

1047728173 is a wasteful number, since it uses less digits than its factorization.

1047728173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 1047728173 is about 32368.6294581652. The cubic root of 1047728173 is about 1015.6627872811.

It can be divided in two parts, 104 and 7728173, that added together give a palindrome (7728277).

The spelling of 1047728173 in words is "one billion, forty-seven million, seven hundred twenty-eight thousand, one hundred seventy-three".