68612877 has 6 divisors (see below), whose sum is σ = 99107502. Its totient is φ = 45741912.

The previous prime is 68612849. The next prime is 68612881. The reversal of 68612877 is 77821686.

It can be written as a sum of positive squares in only one way, i.e., 66683556 + 1929321 = 8166^2 + 1389^2 .

It is not a de Polignac number, because 68612877 - 2²⁴ = 51835661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68612807) 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 in 5 ways as a sum of consecutive naturals, for example, 3811818 + ... + 3811835.

It is an arithmetic number, because the mean of its divisors is an integer number (16517917).

Almost surely, 2^68612877 is an apocalyptic number.

It is an amenable number.

68612877 is a deficient number, since it is larger than the sum of its proper divisors (30494625).

68612877 is a wasteful number, since it uses less digits than its factorization.

68612877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623659 (or 7623656 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 68612877 is about 8283.2890206729. The cubic root of 68612877 is about 409.3880957449.

The spelling of 68612877 in words is "sixty-eight million, six hundred twelve thousand, eight hundred seventy-seven".