68770077 has 8 divisors (see below), whose sum is σ = 92550816. Its totient is φ = 45418032.

The previous prime is 68770067. The next prime is 68770109. The reversal of 68770077 is 77007786.

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

It is not a de Polignac number, because 68770077 - 2⁴ = 68770061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68770007) 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, 106798 + ... + 107439.

It is an arithmetic number, because the mean of its divisors is an integer number (11568852).

Almost surely, 2^68770077 is an apocalyptic number.

It is an amenable number.

68770077 is a deficient number, since it is larger than the sum of its proper divisors (23780739).

68770077 is a wasteful number, since it uses less digits than its factorization.

68770077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214347.

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 68770077 is about 8292.7725761653. The cubic root of 68770077 is about 409.7005090268.

The spelling of 68770077 in words is "sixty-eight million, seven hundred seventy thousand, seventy-seven".