60721606 has 16 divisors (see below), whose sum is σ = 104592960. Its totient is φ = 26147880.

The previous prime is 60721601. The next prime is 60721607. The reversal of 60721606 is 60612706.

It is a super-2 number, since 2×60721606² = 7374226870438472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60721601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72216 + ... + 73051.

It is an arithmetic number, because the mean of its divisors is an integer number (6537060).

Almost surely, 2^60721606 is an apocalyptic number.

60721606 is a deficient number, since it is larger than the sum of its proper divisors (43871354).

60721606 is a wasteful number, since it uses less digits than its factorization.

60721606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145299.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 60721606 is about 7792.4069452256. The cubic root of 60721606 is about 393.0499540469.

Subtracting from 60721606 its reverse (60612706), we obtain a square (108900 = 330²).

The spelling of 60721606 in words is "sixty million, seven hundred twenty-one thousand, six hundred six".