60729447 has 4 divisors (see below), whose sum is σ = 80972600. Its totient is φ = 40486296.

The previous prime is 60729443. The next prime is 60729463. The reversal of 60729447 is 74492706.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 60729447 - 2² = 60729443 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 (60729443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10121572 + ... + 10121577.

It is an arithmetic number, because the mean of its divisors is an integer number (20243150).

Almost surely, 2^60729447 is an apocalyptic number.

60729447 is a deficient number, since it is larger than the sum of its proper divisors (20243153).

60729447 is a wasteful number, since it uses less digits than its factorization.

60729447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243152.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 60729447 is about 7792.9100469594. The cubic root of 60729447 is about 393.0668715400.

The spelling of 60729447 in words is "sixty million, seven hundred twenty-nine thousand, four hundred forty-seven".