60543621 has 6 divisors (see below), whose sum is σ = 87451910. Its totient is φ = 40362408.

The previous prime is 60543607. The next prime is 60543631. The reversal of 60543621 is 12634506.

60543621 is a `hidden beast` number, since 60 + 543 + 62 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53494596 + 7049025 = 7314^2 + 2655^2 .

It is not a de Polignac number, because 60543621 - 2¹⁸ = 60281477 is a prime.

It is a super-4 number, since 4×60543621⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60543631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3363526 + ... + 3363543.

Almost surely, 2^60543621 is an apocalyptic number.

It is an amenable number.

60543621 is a deficient number, since it is larger than the sum of its proper divisors (26908289).

60543621 is a wasteful number, since it uses less digits than its factorization.

60543621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6727075 (or 6727072 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 60543621 is about 7780.9781518778. The cubic root of 60543621 is about 392.6655468920.

The spelling of 60543621 in words is "sixty million, five hundred forty-three thousand, six hundred twenty-one".