60621021 has 8 divisors (see below), whose sum is σ = 89808960. Its totient is φ = 40413996.

The previous prime is 60621019. The next prime is 60621061. The reversal of 60621021 is 12012606.

It is a happy number.

60621021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 60621021 - 2¹ = 60621019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 60620985 and 60621003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60621061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122585 + ... + 1122638.

It is an arithmetic number, because the mean of its divisors is an integer number (11226120).

Almost surely, 2^60621021 is an apocalyptic number.

It is an amenable number.

60621021 is a deficient number, since it is larger than the sum of its proper divisors (29187939).

60621021 is a wasteful number, since it uses less digits than its factorization.

60621021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245232 (or 2245226 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 60621021 is about 7785.9502310251. The cubic root of 60621021 is about 392.8328057525.

Adding to 60621021 its reverse (12012606), we get a palindrome (72633627).

The spelling of 60621021 in words is "sixty million, six hundred twenty-one thousand, twenty-one".