60732409 has 4 divisors (see below), whose sum is σ = 62826660. Its totient is φ = 58638160.

The previous prime is 60732401. The next prime is 60732421. The reversal of 60732409 is 90423706.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23863225 + 36869184 = 4885^2 + 6072^2 .

It is a cyclic number.

It is not a de Polignac number, because 60732409 - 2³ = 60732401 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60732401) 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, 1047082 + ... + 1047139.

It is an arithmetic number, because the mean of its divisors is an integer number (15706665).

Almost surely, 2^60732409 is an apocalyptic number.

It is an amenable number.

60732409 is a deficient number, since it is larger than the sum of its proper divisors (2094251).

60732409 is a wasteful number, since it uses less digits than its factorization.

60732409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094250.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 60732409 is about 7793.1000891815. The cubic root of 60732409 is about 393.0732618784.

The spelling of 60732409 in words is "sixty million, seven hundred thirty-two thousand, four hundred nine".