68879277 has 24 divisors (see below), whose sum is σ = 102023064. Its totient is φ = 44763264.

The previous prime is 68879269. The next prime is 68879287. The reversal of 68879277 is 77297886.

It can be written as a sum of positive squares in 4 ways, for example, as 57244356 + 11634921 = 7566^2 + 3411^2 .

It is not a de Polignac number, because 68879277 - 2³ = 68879269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68879267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93603 + ... + 94335.

It is an arithmetic number, because the mean of its divisors is an integer number (4250961).

Almost surely, 2^68879277 is an apocalyptic number.

It is an amenable number.

68879277 is a deficient number, since it is larger than the sum of its proper divisors (33143787).

68879277 is a wasteful number, since it uses less digits than its factorization.

68879277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 986 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 68879277 is about 8299.3540110059. The cubic root of 68879277 is about 409.9172488158.

The spelling of 68879277 in words is "sixty-eight million, eight hundred seventy-nine thousand, two hundred seventy-seven".