68865827 has 4 divisors (see below), whose sum is σ = 72916776. Its totient is φ = 64814880.

The previous prime is 68865821. The next prime is 68865851. The reversal of 68865827 is 72856886.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72856886 = 2 ⋅36428443.

It is not a de Polignac number, because 68865827 - 2⁸ = 68865571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68865821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025449 + ... + 2025482.

It is an arithmetic number, because the mean of its divisors is an integer number (18229194).

Almost surely, 2^68865827 is an apocalyptic number.

68865827 is a deficient number, since it is larger than the sum of its proper divisors (4050949).

68865827 is a wasteful number, since it uses less digits than its factorization.

68865827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050948.

The product of its digits is 1290240, while the sum is 50.

The square root of 68865827 is about 8298.5436674154. The cubic root of 68865827 is about 409.8905656772.

The spelling of 68865827 in words is "sixty-eight million, eight hundred sixty-five thousand, eight hundred twenty-seven".