60756821 has 4 divisors (see below), whose sum is σ = 60774252. Its totient is φ = 60739392.

The previous prime is 60756811. The next prime is 60756833. The reversal of 60756821 is 12865706.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14326225 + 46430596 = 3785^2 + 6814^2 .

It is a cyclic number.

It is not a de Polignac number, because 60756821 - 2⁶ = 60756757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60756811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490 + ... + 11123.

It is an arithmetic number, because the mean of its divisors is an integer number (15193563).

Almost surely, 2^60756821 is an apocalyptic number.

It is an amenable number.

60756821 is a deficient number, since it is larger than the sum of its proper divisors (17431).

60756821 is a wasteful number, since it uses less digits than its factorization.

60756821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 60756821 is about 7794.6661891322. Note that the first 3 decimals coincide. The cubic root of 60756821 is about 393.1259214013.

The spelling of 60756821 in words is "sixty million, seven hundred fifty-six thousand, eight hundred twenty-one".