68277687 has 16 divisors (see below), whose sum is σ = 94500480. Its totient is φ = 43797600.

The previous prime is 68277673. The next prime is 68277719. The reversal of 68277687 is 78677286.

It is not a de Polignac number, because 68277687 - 2¹¹ = 68275639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68277607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27612 + ... + 29982.

It is an arithmetic number, because the mean of its divisors is an integer number (5906280).

Almost surely, 2^68277687 is an apocalyptic number.

68277687 is a deficient number, since it is larger than the sum of its proper divisors (26222793).

68277687 is a wasteful number, since it uses less digits than its factorization.

68277687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734.

The product of its digits is 1580544, while the sum is 51.

The square root of 68277687 is about 8263.0313444885. The cubic root of 68277687 is about 408.7203549094.

The spelling of 68277687 in words is "sixty-eight million, two hundred seventy-seven thousand, six hundred eighty-seven".