60820660 has 24 divisors (see below), whose sum is σ = 129819816. Its totient is φ = 23928960.

The previous prime is 60820651. The next prime is 60820687. The reversal of 60820660 is 6602806.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1653796 + 59166864 = 1286^2 + 7692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23707 + ... + 26146.

It is an arithmetic number, because the mean of its divisors is an integer number (5409159).

Almost surely, 2^60820660 is an apocalyptic number.

It is an amenable number.

60820660 is an abundant number, since it is smaller than the sum of its proper divisors (68999156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

60820660 is a wasteful number, since it uses less digits than its factorization.

60820660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49923 (or 49921 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 60820660 is about 7798.7601578712. The cubic root of 60820660 is about 393.2635629064.

The spelling of 60820660 in words is "sixty million, eight hundred twenty thousand, six hundred sixty".