68740877 has 8 divisors (see below), whose sum is σ = 72863352. Its totient is φ = 64627200.

The previous prime is 68740873. The next prime is 68740891. The reversal of 68740877 is 77804786.

It can be written as a sum of positive squares in 4 ways, for example, as 53421481 + 15319396 = 7309^2 + 3914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68740877 - 2² = 68740873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68740873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20927 + ... + 23987.

It is an arithmetic number, because the mean of its divisors is an integer number (9107919).

Almost surely, 2^68740877 is an apocalyptic number.

It is an amenable number.

68740877 is a deficient number, since it is larger than the sum of its proper divisors (4122475).

68740877 is a wasteful number, since it uses less digits than its factorization.

68740877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399.

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 68740877 is about 8291.0118200374. The cubic root of 68740877 is about 409.6425140916.

The spelling of 68740877 in words is "sixty-eight million, seven hundred forty thousand, eight hundred seventy-seven".