60956821 has 2 divisors, whose sum is σ = 60956822. Its totient is φ = 60956820.

The previous prime is 60956809. The next prime is 60956851. The reversal of 60956821 is 12865906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57304900 + 3651921 = 7570^2 + 1911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60956821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60956851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30478410 + 30478411.

It is an arithmetic number, because the mean of its divisors is an integer number (30478411).

Almost surely, 2^60956821 is an apocalyptic number.

It is an amenable number.

60956821 is a deficient number, since it is larger than the sum of its proper divisors (1).

60956821 is an equidigital number, since it uses as much as digits as its factorization.

60956821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 60956821 is about 7807.4849343435. The cubic root of 60956821 is about 393.5568144123.

The spelling of 60956821 in words is "sixty million, nine hundred fifty-six thousand, eight hundred twenty-one".