61842497 has 2 divisors, whose sum is σ = 61842498. Its totient is φ = 61842496.

The previous prime is 61842463. The next prime is 61842559. The reversal of 61842497 is 79424816.

61842497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 7864²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61842496 + 1 = 7864^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 61842497 - 2¹⁴ = 61826113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61842097) 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 as a sum of consecutive naturals, namely, 30921248 + 30921249.

It is an arithmetic number, because the mean of its divisors is an integer number (30921249).

Almost surely, 2^61842497 is an apocalyptic number.

It is an amenable number.

61842497 is a deficient number, since it is larger than the sum of its proper divisors (1).

61842497 is an equidigital number, since it uses as much as digits as its factorization.

61842497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 61842497 is about 7864.0000635809. Note that the first 4 decimals coincide. The cubic root of 61842497 is about 395.4537263334.

The spelling of 61842497 in words is "sixty-one million, eight hundred forty-two thousand, four hundred ninety-seven".