61086877 has 2 divisors, whose sum is σ = 61086878. Its totient is φ = 61086876.

The previous prime is 61086863. The next prime is 61086913. The reversal of 61086877 is 77868016.

61086877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60124516 + 962361 = 7754^2 + 981^2 .

It is a cyclic number.

It is not a de Polignac number, because 61086877 - 2⁷ = 61086749 is a prime.

It is a super-2 number, since 2×61086877² = 7463213083226258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61081877) 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, 30543438 + 30543439.

It is an arithmetic number, because the mean of its divisors is an integer number (30543439).

Almost surely, 2^61086877 is an apocalyptic number.

It is an amenable number.

61086877 is a deficient number, since it is larger than the sum of its proper divisors (1).

61086877 is an equidigital number, since it uses as much as digits as its factorization.

61086877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 61086877 is about 7815.8094270523. The cubic root of 61086877 is about 393.8365100250.

The spelling of 61086877 in words is "sixty-one million, eighty-six thousand, eight hundred seventy-seven".