60720706 has 4 divisors (see below), whose sum is σ = 91081062. Its totient is φ = 30360352.

The previous prime is 60720701. The next prime is 60720761. The reversal of 60720706 is 60702706.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60702706 = 2 ⋅30351353.

It can be written as a sum of positive squares in only one way, i.e., 60699681 + 21025 = 7791^2 + 145^2 .

It is not an unprimeable number, because it can be changed into a prime (60720701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15180175 + ... + 15180178.

Almost surely, 2^60720706 is an apocalyptic number.

60720706 is a deficient number, since it is larger than the sum of its proper divisors (30360356).

60720706 is a wasteful number, since it uses less digits than its factorization.

60720706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30360355.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 60720706 is about 7792.3491964875. The cubic root of 60720706 is about 393.0480121423.

The spelling of 60720706 in words is "sixty million, seven hundred twenty thousand, seven hundred six".