61794877 has 2 divisors, whose sum is σ = 61794878. Its totient is φ = 61794876.

The previous prime is 61794871. The next prime is 61794893. The reversal of 61794877 is 77849716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61685316 + 109561 = 7854^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 61794877 - 2¹⁵ = 61762109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61794877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61794871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30897438 + 30897439.

It is an arithmetic number, because the mean of its divisors is an integer number (30897439).

Almost surely, 2^61794877 is an apocalyptic number.

It is an amenable number.

61794877 is a deficient number, since it is larger than the sum of its proper divisors (1).

61794877 is an equidigital number, since it uses as much as digits as its factorization.

61794877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 49.

The square root of 61794877 is about 7860.9717592674. The cubic root of 61794877 is about 395.3521977569.

The spelling of 61794877 in words is "sixty-one million, seven hundred ninety-four thousand, eight hundred seventy-seven".