60820997 has 2 divisors, whose sum is σ = 60820998. Its totient is φ = 60820996.

The previous prime is 60820987. The next prime is 60821009. The reversal of 60820997 is 79902806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40018276 + 20802721 = 6326^2 + 4561^2 .

It is a cyclic number.

It is not a de Polignac number, because 60820997 - 2⁸ = 60820741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60820987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30410498 + 30410499.

It is an arithmetic number, because the mean of its divisors is an integer number (30410499).

Almost surely, 2^60820997 is an apocalyptic number.

It is an amenable number.

60820997 is a deficient number, since it is larger than the sum of its proper divisors (1).

60820997 is an equidigital number, since it uses as much as digits as its factorization.

60820997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 60820997 is about 7798.7817638398. The cubic root of 60820997 is about 393.2642892471.

The spelling of 60820997 in words is "sixty million, eight hundred twenty thousand, nine hundred ninety-seven".