68534787 has 4 divisors (see below), whose sum is σ = 91379720. Its totient is φ = 45689856.

The previous prime is 68534783. The next prime is 68534833. The reversal of 68534787 is 78743586.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68534787 - 2² = 68534783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68534783) 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, 11422462 + ... + 11422467.

It is an arithmetic number, because the mean of its divisors is an integer number (22844930).

Almost surely, 2^68534787 is an apocalyptic number.

68534787 is a deficient number, since it is larger than the sum of its proper divisors (22844933).

68534787 is a wasteful number, since it uses less digits than its factorization.

68534787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22844932.

The product of its digits is 1128960, while the sum is 48.

The square root of 68534787 is about 8278.5739714035. The cubic root of 68534787 is about 409.2327252384.

The spelling of 68534787 in words is "sixty-eight million, five hundred thirty-four thousand, seven hundred eighty-seven".