68705077 has 4 divisors (see below), whose sum is σ = 78520096. Its totient is φ = 58890060.

The previous prime is 68705029. The next prime is 68705107. The reversal of 68705077 is 77050786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68705077 - 2¹¹ = 68703029 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 (68708077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4907499 + ... + 4907512.

It is an arithmetic number, because the mean of its divisors is an integer number (19630024).

Almost surely, 2^68705077 is an apocalyptic number.

It is an amenable number.

68705077 is a deficient number, since it is larger than the sum of its proper divisors (9815019).

68705077 is an equidigital number, since it uses as much as digits as its factorization.

68705077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815018.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 68705077 is about 8288.8525743917. The cubic root of 68705077 is about 409.5713882965.

The spelling of 68705077 in words is "sixty-eight million, seven hundred five thousand, seventy-seven".