61974853 has 2 divisors, whose sum is σ = 61974854. Its totient is φ = 61974852.

The previous prime is 61974817. The next prime is 61974863. The reversal of 61974853 is 35847916.

61974853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43467649 + 18507204 = 6593^2 + 4302^2 .

It is a cyclic number.

It is not a de Polignac number, because 61974853 - 2¹⁷ = 61843781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61974863) 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, 30987426 + 30987427.

It is an arithmetic number, because the mean of its divisors is an integer number (30987427).

Almost surely, 2^61974853 is an apocalyptic number.

It is an amenable number.

61974853 is a deficient number, since it is larger than the sum of its proper divisors (1).

61974853 is an equidigital number, since it uses as much as digits as its factorization.

61974853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 61974853 is about 7872.4108759642. The cubic root of 61974853 is about 395.7356434629.

The spelling of 61974853 in words is "sixty-one million, nine hundred seventy-four thousand, eight hundred fifty-three".