1473704721 has 12 divisors (see below), whose sum is σ = 2253901572. Its totient is φ = 924677376.

The previous prime is 1473704717. The next prime is 1473704741. The reversal of 1473704721 is 1274073741.

It can be written as a sum of positive squares in 2 ways, for example, as 1234538496 + 239166225 = 35136^2 + 15465^2 .

It is not a de Polignac number, because 1473704721 - 2² = 1473704717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1473704711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4815876 + ... + 4816181.

It is an arithmetic number, because the mean of its divisors is an integer number (187825131).

Almost surely, 2^1473704721 is an apocalyptic number.

It is an amenable number.

1473704721 is a deficient number, since it is larger than the sum of its proper divisors (780196851).

1473704721 is a wasteful number, since it uses less digits than its factorization.

1473704721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9632080 (or 9632077 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 1473704721 is about 38388.8619393699. The cubic root of 1473704721 is about 1137.9857529441.

The spelling of 1473704721 in words is "one billion, four hundred seventy-three million, seven hundred four thousand, seven hundred twenty-one".